In automotive design, a front-mid-engine, front-wheel-drive layout is one in which the front road wheels are driven by an internal-combustion engine placed just behind them, in front of the passenger
Renault 4 rolling chassis
Citroën Traction Avant revolutionized auto design with its low slung unibody design bodywork.
The 1955–1975 Citroën DS successor packed full of innovations, but retained the MF layout
Saab Sonett mk1 used the MF layout by turning the engine and running it "backwards".
In automotive design, a front-engine, front-wheel-drive layout, or FF layout, places both the internal combustion engine and driven roadwheels at the front of the vehicle.
A 1975 Alfa Romeo Alfasud Sprint Veloce using a Longitudinally mounted front-engine and front-wheel drive.
The bonnet on this original Mini is open, showing the transversely mounted engine that drives the front wheels.
Mid-engine, front-wheel drive (MF layout): Renault 4 mid-engine, front-wheel-drive layout allows greater distance between front doors and wheelwells, and short front overhang.
Longitudinally front-mounted engine, front-wheel drive (FF longitudinal layout): The Auto Union 1000, (today Audi) longitudinal layout superseded the DKW F89 front transverse engines in the 1950s.