There are two trims with the same engine specs in the Caterham Seven 420 range, starting with the regular 420. The 420 Cup is the other. The engine is a 2.0-liter four-cylinder naturally-aspirated unit from Ford producing 210 horsepower and 150 lb-ft of torque. With a five-speed manual gearbox, the Seven 420 will hit 60 mph in only 3.8 seconds, while the Cup's six-speed sequential transmission helps cut that time down to 3.6 seconds. Two chassis sizes are available, while the Cup also has Bilstein ten-point adjustable dampers.
The standard model comes with 14-inch Classic alloy wheels and Avon ZT5 tires, while the Cup has special translucent satin decals and 13-inch Black Apollo alloys with Avon ZZR tires. The standard model's basic cabin includes black leather upholstery, full carpeting, and a heater. With the optional R Pack, you get four-point race harnesses, a carbon-fiber dashboard, and composite race seats.