Swift DB5
The Swift DB5 is a purpose-built 2-liter prototype, designed, developed and built by Swift Engineering, specifically for Sports 2000 racing, in 1990. Like its predecessor, it is powered by a naturally aspirated  EAO four-cylinder engine, derived from the Ford Pinto, producing a respectable . This drives the rear wheels through a Hewland Mk.8 four-speed manual transmission. It is also very light, weighing only . References

Swift Engineering vehicles
Sports prototypes