Caterham's new 2015 rangeCaterham’s previously sprawling model range has been rationalised to five core models, all depicting their power-to-weight ratio.

The line-up range now comprises Seven 160, Seven 270, Seven 360, Seven 420 and Seven 620.

It brings to an end the range of Caterham Seven Roadsport, Supersport and Superlight variants: as a further simplification, key extras have been bundled into S Pack and R Pack options.

Caterham Seven 270 S

The new models are the 270, 360 and 420 variants; the Seven 270 boasts a 1.6-litre Ford Sigma engine that produces 135hp, with the Seven 360 using a 2.0-litre Ford Duratec motor producing 180hp.

Caterham Seven 360 R

The Seven 360 engine is actually the same used by the Caterham R300 racing cars.

Caterham Seven 420 R

The Seven 420 has a much more focused 2.0-litre Ford Duratec, producing 210hp and boasting a track-ready dry sump lubrication system. It can accelerate from 0-62mph in just 4.0 seconds.

The Caterham 620 remains the most powerful Seven ever built: it puts out 310hp (remarkably, from the same 2.0-litre Ford Duratec engine) and hurtles from 0-62mph in just 2.8 seconds.

The S Pack option is aimed at the ‘casual driver’ and includes full windscreen, hood, side screens, fully carpeted interior and leather seats.

The R Pack is track-focused and has a limited-slip differential, sports suspension, four-point race harness and lightweight Caterham-developed 15-inch Orcus alloys.

Caterham Cars CEO Graham Macdonald said: “The Caterham brand has always had simplicity at its heart. While the pure thrill of driving remains at the core of our iconic Seven design, the experience of selecting and buying Caterham is one that now reflects the brand’s values of effortlessness and intuition.”

2015 Caterham Seven range – prices

Caterham Seven 160: £18,995

Caterham Seven 270: £22,995

Caterham Seven 360: £26,995

Caterham Seven 420: £29,995

Caterham Seven 620: £49,995