Right, what's the difference between these Sevens?
Caterham has simplified its range, filling the gaps between base 160 and bonkers 620 with 270, 360 and 420 models. Each is named after its power-to-weight figure, so given they all weigh around 500kg, just divide those numbers in half for the bhp figures.
Each is available with either the £2,995 road-trim ‘S’ or £3,995 track-focused ‘R’ packs. The S has an open diff and a gentler approach to life, while the R has uprated brakes and suspension, a lightweight flywheel, harnesses and bare seats. This S also has the, er, more commodious (OK, wider), SV chassis.