In both road and rail vehicles, the wheelbase is the distance between the centers of the front and rear wheels. For road vehicles with more than two axles, the wheelbase is defined as the distance between the axle and the centerpoint of the driving axle group. In the case of a truck, the wheelbase would be the distance between the steering axle and a point midway between the two rear axles. The wheelbase of a vehicle equals the distance between its front and rear wheels, at equilibrium, the total torque of the forces acting on a vehicle is zero. So, for example, when a truck is loaded, its center of gravity shifts rearward, the amount the vehicle sinks will depend on counter acting forces like the size of the tires, tire pressure, and the stiffness of the suspension. If the vehicle is accelerating or decelerating, extra torque is placed on the rear or front tire respectively, so, as is common experience, when the vehicle accelerates, the rear usually sinks and the front rises depending on the suspension.
Likewise, when braking the front noses down and the rear rises, because of the effect the wheelbase has on the weight distribution of the vehicle, wheelbase dimensions are crucial to the balance and steering. For example, a car with a greater weight load on the rear tends to understeer due to the lack of the load on the front tires. This is why it is crucial, when towing a single-axle caravan, likewise, a car may oversteer or even spin out if there is too much force on the front tires and not enough on the rear tires. Also, when turning there is lateral torque placed upon the tires which imparts a turning force that depends upon the length of the distances from the CM. Wheelbases provide the basis for one of the most common vehicle size class systems, some luxury vehicles are offered with long-wheelbase variants to increase the spaciousness and therefore the luxury of the vehicle. Prime Minister of the United Kingdom Tony Blair was given a version of the Rover 75 for official use. In contrast, coupé varieties of vehicles such as the Honda Accord are usually built on shorter wheelbases than the sedans they are derived from.
The wheelbase on many commercially available bicycles and motorcycles is so short, relative to the height of their centers of mass, in skateboarding the word wheelbase is used for the distance between the two inner pairs of mounting holes on the deck. This is different from the distance between the centers of the two wheel pairs. A reason for this use is that decks are sold with prefabricated holes. It is therefore easier to use the holes for measuring and describing this characteristic of the deck. A common misconception is that the choice of wheelbase is influenced by the height of the skateboarder, the length of the deck would be a better candidate, because the wheelbase affects characteristics useful in different speeds or terrains regardless of the height of the skateboarder
The Ferrari Daytona, officially designated the Ferrari 365 GTB/4, is a two-seat grand tourer produced by Ferrari from 1968 to 1973. It was introduced at the Paris Auto Salon in 1968 to replace the 275 GTB/4, the Daytona was succeeded by the mid-engined 365 GT4 Berlinetta Boxer in 1973. To this day, Ferrari itself only rarely refers to the 365 as the Daytona, unlike Lamborghinis then-new, mid-engined Miura, the Daytona was a traditional front-engined, rear-drive car. At a compression ratio of 9.3,1, it produced 357 PS, 0-60 mph acceleration was just 5.4 seconds. The five-speed manual transmission was mounted in the rear for optimal weight distribution, although a Pininfarina design, as with many previous Ferrari road cars styled by Leonardo Fioravanti, the 365 GTB/4 was radically different. Its sharp-edged styling resembled a Lamborghini more than a traditional Pininfarina Ferrari, early Daytonas featured fixed headlights behind an acrylic glass cover. A new U. S. safety regulation banning headlights behind covers resulted in retractable pop-up twin headlights in 1971, the generally accepted total number of Daytonas from the Ferrari club historians is 1,406 over the life of the model.
This figure includes 156 UK right-hand-drive coupés,122 factory-made spyders, all bodies except the first Pininfarina prototype were produced by Italian coachbuilder Scaglietti, which at the time already had a reputable record of working with Ferrari. Historically, and especially since the mid-1980s and early 1990s, there has mostly been a market price difference between a real berlinetta and a real spyder. Many berlinettas were turned into spyders by aftermarket mechanics, often to increase the monetary value or simply because of the owners preference for an open car. Differences in value have typically remained, even after the most skillful conversions, no Berlinettas were converted into Spyders by Scaglietti, Ferrari would not allow this, or now. The first racing version of the 365GTB/4 was prepared in 1969, Ferrari did not produce an official competition car until late in 1970. The official cars were built in three batches of five each, in 1970-1,1972 and 1973. They all featured a lightweight body making use of aluminium and fibreglass panels, the engine was unchanged from the road car in the first batch of competition cars, but tuned in the latter two batches.
The cars were not raced by the official Scuderia Ferrari team and they enjoyed particular success in the 24 Hours of Le Mans, with results including a 5th overall in 1971, followed by GT class wins in 1972,1973 and 1974. In 1972 Ferrari 365 GTB/4s took the first 5 places of the GT class, the final major success of the car was in 1979, when a 1973 car achieved a class victory in the 24 Hours of Daytona. In 1971, the Daytona gained fame when one was driven by Dan Gurney and Brock Yates in the inaugural Cannonball Baker Sea-To-Shining-Sea Memorial Trophy Dash. Showcasing the cars potential for sustained high speed travel, the pair won with an speed of 80.1 miles per hour
Governments and private organizations have developed car classification schemes that are used for innumerable purposes including regulation and categorization, among others. This article details commonly used classification schemes in use worldwide, vehicles can be categorized in numerous ways. Regulatory agencies may establish a vehicle classification system for determining a tax amount, in the United Kingdom, a vehicle is taxed according to the vehicles construction, weight, type of fuel and emissions, as well as the purpose for which it is used. Other jurisdictions may determine vehicle tax based upon environmental principles, such as the user pays principle, another standard for road vehicles of all types that is used internationally, is ISO 3833-1977. In the United States, since 2010 the Insurance Institute for Highway Safety uses a scheme it has developed that takes into account a combination of both shadow and weight. The United States Federal Highway Administration has developed a scheme used for automatically calculating road use tolls.
There are two categories depending on whether the vehicle carries passengers or commodities. Vehicles that carry commodities are further subdivided by number of axles and number of units, the United States Environmental Protection Agency has developed a classification scheme used to compare fuel economy among similar vehicles. Passenger vehicles are classified based on a total interior passenger. Trucks are classified based upon their gross vehicle weight rating, heavy duty vehicles are not included within the EPA scheme. A similar set of classes is used by the Canadian EPA, in Australia, the Federal Chamber of Automotive Industries publishes its own classifications. This is a table listing several different methods of vehicle classification. Straddling the boundary between car and motorbike, these vehicles have engines under 1.0 litre, typically only two passengers, and are sometimes unorthodox in construction. Some microcars are three-wheelers, while the majority have four wheels, microcars were popular in post-war Europe, where their appearance led them to be called Bubble cars.
More recent microcars are often electric powered, the size of ultracompact cars will be less than minicars, but have engine greater than 50cc displacement and able to transport 1 or 2 persons. Ultracompact cars cannot use standard, because of strict safety standards for minicars. The regulation about running capacity and safety performance of cars will be published in early autumn. Today, there are smaller than ultracompact cars, called category-1 motorized vehicles which it has 50cc displacement or less
A grand tourer is a performance and luxury automobile capable of high speed and long-distance driving. The most common format is a two-door coupé with either a two-seat or a 2+2 arrangement, the grand touring concept is eurocentric, the definition implies material differences in performance at speed and amenities between elite automobiles and those of ordinary motorists. In post-war United States, the Interstate Highway System and wide availability of powerful Straight-six, European GTs did find success penetrating the American personal luxury car market, notably the Mercedes-Benz SL-Class. Grand touring car design evolved from vintage and pre-World War II fast touring cars, italy developed the first gran turismo cars. The small, light-weight and aerodynamic coupé, named the Berlinetta, independent carrozzeria provided light and flexible fabric coachwork for powerful short-wheelbase fast-touring chassis by manufacturers such as Alfa Romeo. Later, Carrozzeria Touring of Milan would pioneer sophisticated Superleggera aluminium bodywork, the additional comfort of an enclosed cabin was beneficial for the Mille Miglia road-race held in Italys often wintry north.
An improved and supercharged version, the 6C1750 GTC Gran Turismo Compressore, from the basic Fiat 508 Balilla touring chassis came the SIATA and Fiat aerodynamic gran turismo-style Berlinetta Mille Miglias of 1933 and 1935. The first recognised motor race for gran turismo cars was the 1949 Coppa Inter-Europa held at Monza, the Fiat based 1100 cc four-cylinder Cisitaila was no match on the race track for Ferraris new hand-built 2000 cc V12, and Ferrari dominated, taking the first three places. An 1100 cc class was created, but not in time to save Cisitalias business fortunes—the companys bankrupt owner Piero Dusio had already decamped to Argentina. The Maserati A61500 won the 1500 cc class at the 1949 Coppa-Europa and it was driven by Franco Bordoni, former fighter ace of the Regia Aeronautica who had debuted as a pilota da corsa at the 1949 Mille Miglia. The body of the A61500 was an elegant two-door fast-back coupe body, the first car constructed in Ferraris name, the V12125 S, a racing sports car, debuted in 1947 at the Piacenza racing circuit.
The Ferrari 166 Inter S coupé model won the 1949 Coppa Inter-Europa, regulations stipulated body form and dimensions but did not at this time specify a minimum production quantity. The car was driven by Bruno Sterzi, and is recognized as the first Ferrari gran turismo, Ferraris response for the new Gran Tursimo championship was the road/race Ferrari 212. All versions came with the standard Ferrari five-speed non-synchromesh gearbox and hydraulic drum brakes, all 1951 Ferraris shared a double tube frame chassis design evolved from the 166. Double-wishbone front suspension with leaf spring, and live rear axle with semi-elliptic leaf springs. Even more impressive than the new Ferrari in 1951 was the debut of Lancias Aurelia B20 GT. Lancia had begun production in 1950 of their technically advanced Aurelia sedan, at the 1951 Turin Motor Show, the Pinin Farina-bodied Gran Tursimo B20 Coupé version was unveiled to an enthusiastic motoring public. In the B20 are elements of the Cistalia of 1947, coupés which Pinin undertook on a 6C Alfa Romeo and Maserati in 1948, in addition the B20 had a shorter wheelbase and a higher rear axle ratio, making it a 100 mph car
By using split crankpins or ignoring minor vibrations, any V angle is possible. The 180° configuration is referred to as a flat-twelve engine or a boxer although it is in reality a 180° V since the pistons can. This is not important in a car if all-out performance is the only goal. Since cost and fuel economy are usually important even in luxury and racing cars and it is often used in marine engines where great power is required, and the hull width is limited, but a longer vessel allows faster hull speed. In twin-propeller boats, two V12 engines can be enough to sit side-by-side, while three V12 engines are sometimes used in high-speed three-propeller configurations. Large, fast cruise ships can have six or more V12 engines, after World War II, the compact, more powerful, and vibration-free turboprop and turbojet engines replaced the V12 in aircraft applications. The first V-type engine was built in 1889 by Daimler, to a design by Wilhelm Maybach, by 1903 V8 engines were being produced for motor boat racing by the Société Antoinette to designs by Léon Levavasseur, building on experience gained with in-line four-cylinder engines.
In 1904, the Putney Motor Works completed a new V12 marine racing engine—the first V12 engine produced for any purpose, a single camshaft mounted in the central V operated the valves directly. As in many engines, the camshaft could be slid longitudinally to engage a second set of cams. Starting is by pumping a charge into each cylinder and switching on the trembler coils, a sliding camshaft gave direct reversing. The camshaft has fluted webs and main bearings in graduated thickness from the largest at the flywheel end, displacing 1,120 cu in, the engine weighed 950 pounds and developed 150 bhp. Little is known of the achievements in the 40-foot hull for which it was intended. One V12 Dörwald marine engine was still running in a Hong Kong junk in the late-1960s. Two more V12s appeared in the 1909-1910 motor boat racing season, the Lamb Boat & Engine Company of Clinton, Iowa built a 1,559 cu in engine for the companys 32-foot Lamb IV. It weighed in at 2,114 pounds, no weight is known for the massive 3,464 cu in F-head engine built by the Orleans Motor Company.
Output is quoted as nearly 400 bhp, by 1914, when Panhard built two 2,356 cu in engines with four-valve cylinder heads the V12 was well established in motor boat racing. In October 1913, Louis Coatalen, chief engineer of the Sunbeam Motor Car Company entered a V12 powered car in the Brooklands short, the engine displaced 9 L, with bore and stroke of 80 x 150 mm. An aluminum crankcase carried two blocks of three cylinders each along each side, with a 60 degree included angle, the cylinders were of iron, with integral cylinder heads with L-shaped combustion chambers
The Ferrari 330 was a series of V12 powered automobiles produced by Ferrari in 2+2 GT Coupé, two-seat Berlinetta and race car versions between 1963 and 1968. Production ended in 1968 with the introduction of the Ferrari 365 series, all 330 models used an evolution of the 400 Superamericas 4.0 L Colombo V12 engine. It was substantially changed, with wider spacing and an alternator replacing a generator. The 1963330 America shared the outgoing 250 GTEs chassis but not its engine, being powered by the new 4.0 L Tipo 209 V12, as for the 250-series,330 refers to the approximate displacement of each single cylinder. Socialite Sandra West is buried with her blue 330 America at the Alamo Masonic Cemetery at San Antonio, about 50330 Americas were built before being replaced by the larger 330 GT 2+2. The provisional 330 America was replaced in January 1964 by the new 330 GT 2+2 and it was first shown at the Brussels Show, early that year. It was much more than a re-engined 250, with a nose and tail, quad headlights.
The wheelbase was 50 mm longer, but Koni adjustable shock absorbers improved handling, a dual-circuit Dunlop braking system was used with discs all around, though it separated brakes front to back rather than diagonally as on modern systems. When leaving the factory the 330 GT originally fitted Pirelli Cinturato 205VR15 tyres, the 1965 Series II version featured a five-speed gearbox instead of the overdrive four-speed of the prior year. Other changes included the switch back to a dual-light instead of quad-light front clip, alloy wheels,625 Series I and 455 Series II330 GT 2+2 cars had been built when the car was replaced by the 365 GT 2+2 in 1967. Production of the smaller 330 GTC and GTS models overlapped with the GT 2+2 for more than a year, the 330 GTC and 330 GTS were more like their 275 counterparts than the 330 GT 2+2. They shared the wheelbase of the 275 as well as its independent rear suspension. These models were more refined than earlier Ferraris and easier to drive and it has been stated that this was probably the first Ferrari in which you could actually enjoy a radio.
The GTC berlinetta was introduced at the Geneva Motor Show in March,1966 and it was a two-seater coupé with a Pininfarina-designed body. A1967 GTC was given one-off bodywork by Zagato at the behest of American importer Luigi Chinetti in 1974 and this car was called the Zagato Convertibile, since it was of a targa-style. The GTS spider followed at the Paris Motor Show, about 600 coupés and 100 spiders were produced before the 1968 introduction of the 365 GTC and GTS. Four 330 Le Mans Berlinettas were built in 1963, first presented in March 1963 alongside the mid-engined 250 P, they were essentially a development of the 250 GTOs and fitted with the 4-litre 330 engine, here rated at 390 hp at 7,500 rpm. Although the front is similar to the 250 GTOs, the main structure came from the 250 Lusso
A transmission is a machine in a power transmission system, which provides controlled application of the power. Often the term refers simply to the gearbox that uses gears and gear trains to provide speed. In British English, the term refers to the whole drivetrain, including clutch, prop shaft, differential. In American English, the term more specifically to the gearbox alone. The most common use is in vehicles, where the transmission adapts the output of the internal combustion engine to the drive wheels. Such engines need to operate at a high rotational speed, which is inappropriate for starting, stopping. The transmission reduces the engine speed to the slower wheel speed. Transmissions are used on bicycles, fixed machines. Often, a transmission has multiple gear ratios with the ability to switch between them as speed varies and this switching may be done manually or automatically. Directional control may be provided, single-ratio transmissions exist, which simply change the speed and torque of motor output.
The output of the transmission is transmitted via the driveshaft to one or more differentials, while a differential may provide gear reduction, its primary purpose is to permit the wheels at either end of an axle to rotate at different speeds as it changes the direction of rotation. Conventional gear/belt transmissions are not the mechanism for speed/torque adaptation. Alternative mechanisms include torque converters and power transformation, automatic transmissions use a valve body to shift gears using fluid pressures in conjunction with an ecm. Early transmissions included the right-angle drives and other gearing in windmills, horse-powered devices, and steam engines, in support of pumping, most modern gearboxes are used to increase torque while reducing the speed of a prime mover output shaft. This means that the shaft of a gearbox rotates at a slower rate than the input shaft. A gearbox can be set up to do the opposite and provide an increase in speed with a reduction of torque. Some of the simplest gearboxes merely change the rotational direction of power transmission.
Many typical automobile transmissions include the ability to select one of several gear ratios, in this case, most of the gear ratios are used to slow down the output speed of the engine and increase torque
An engine or motor is a machine designed to convert one form of energy into mechanical energy. Heat engines burn a fuel to heat, which is used to create a force. Electric motors convert electrical energy into motion, pneumatic motors use compressed air. In biological systems, molecular motors, like myosins in muscles, use energy to create forces. The word engine derives from Old French engin, from the Latin ingenium–the root of the word ingenious. Pre-industrial weapons of war, such as catapults and battering rams, were called siege engines, the word gin, as in cotton gin, is short for engine. Most mechanical devices invented during the revolution were described as engines—the steam engine being a notable example. However, the steam engines, such as those by Thomas Savery, were not mechanical engines. In this manner, an engine in its original form was merely a water pump. Devices converting heat energy into motion are commonly referred to simply as engines, examples of engines which exert a torque include the familiar automobile gasoline and diesel engines, as well as turboshafts.
Examples of engines which produce thrust include turbofans and rockets, the term motor derives from the Latin verb moto which means to set in motion, or maintain motion. Thus a motor is a device that imparts motion and engine came to be used largely interchangeably in casual discourse. However, the two words have different meanings, rocketry uses the term rocket motor, even though they consume fuel. A heat engine may serve as a prime mover—a component that transforms the flow or changes in pressure of a fluid into mechanical energy. An automobile powered by a combustion engine may make use of various motors and pumps. Another way of looking at it is that a motor receives power from an external source, simple machines, such as the club and oar, are prehistoric. More complex engines using human power, animal power, water power, wind power and these were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome. The writers of those times, including Vitruvius and Pliny the Elder, treat these engines as commonplace, by the 1st century AD, cattle and horses were used in mills, driving machines similar to those powered by humans in earlier times
Pininfarina S. p. A. is an Italian car design firm and coachbuilder in Cambiano, Italy. It was founded by Battista Pinin Farina in 1930. On December 14,2015, Mahindra Group, Pininfarina is employed by a wide variety of automobile manufactures to design vehicles. Since the 1980s Pininfarina has designed high-speed trains, trams, rolling stocks, automated light rail cars, people movers, airplanes, with the 1986 creation of Pininfarina Extra they have consulted on industrial design, interior design and graphic design. Pininfarina was run by Battistas son Sergio Pininfarina until 2001, his grandson Andrea Pininfarina until his death in 2008, after Andreas death his younger brother Paolo Pininfarina was appointed as CEO. At its height in 2006 the Pininfarina Group employed 2,768 with subsidiary company offices throughout Europe, as well as in Morocco, as of 2012 with the end of series automotive production, employment has shrunk to 821. Pininfarina is registered and publicly traded on the Borsa Italiana, on December 14,2015, Mahindra Group, announced a deal to acquire Pininfarina S. p. A. in a deal worth about 168 million euros.
That first year the firm employed eighteen and built 50 automobile bodies, on May 22,1930 papers were filed to become a corporation, Società anonima Carrozzeria Pinin Farina headquartered in Turin, Italy, at 107 Corso Trapani. During the 1930s, the company built bodies for Lancia, Alfa Romeo, Isotta-Fraschini, Hispano Suiza, Fiat and this development happened in the mid-1930s when others saw the frameless construction as the end of the independent coachbilder. In 1939, World War II ended automobile production, but the company had 400 employees building 150 bodies a month, the war effort against the Allies brought work making ambulances and searchlight carriages. The Pininfarina factory was destroyed by Allied bombers ending the firms operations, after the war, Italy was banned from the 1946 Paris Motor Show. The Paris show was attended by 809,000 visitors, lines of people stretched from the gate all the way to the Seine. The managers of the Grand Palais said of the display, the devil Pininfarina, but to the press, at the end of 1945 the Cisitalia 202 Coupé was designed.
An elegantly proportioned design with a low hood, it is the car that usually is given credit for establishing Pininfarinas reputation, the Pininfarina design was honored in the Museum of Modern Arts landmark presentation Eight Automobiles in 1951. A total of 170 Coupés where produced by Pininfarina, the publicity of the Museum of Modern Art exhibit brought Pininfarina to the attention of Nash-Kelvinator managers. The subsequent cooperation with Nash Motors resulted in production of Pininfarina designs. In 1952, Mr. Farina visited the U. S, the Nash-Healey sports car body was, completely designed and assembled in limited numbers from 1952 to 1954 at Pininfarinas Turin facilities. Nash heavily advertised its link to the famous Italian designer, much as Studebaker promoted its longtime association with Raymond Loewy, there were 99 Broughams built in 1959 and 101 in 1960. A similar arrangement was repeated in the late 1980s when Pininfarina designed the Cadillac Allanté at the San Giusto Canavese factory, the car bodies were assembled and painted in Italy before being flown from the Turin International Airport to Detroit for final vehicle assembly