The Opel Speedster is a mid-engined, targa-topped, two-seat sports car sold by German automaker Opel and introduced in July 2000. It was built in both RHD and LHD versions at the Lotus Cars plant in Hethel, Norfolk, England. It was presented at the Geneva Motor Show in March 1999 and went into full production the following year.

The Family II is a straight-4 piston engine that was originally developed by Opel in the 1970s, debuting in 1981. Available in a wide range of cubic capacities ranging from 1598 to 2405 cc, it simultaneously replaced the Opel CIH and Vauxhall Slant-4 engines, and was GM Europe's core mid-sized powerplant design for much of the 1980s, and provided the basis for the later Ecotec series of engines in the 1990s.