What is it?
If you can’t justify spending Porsche Cayman money on the mighty, mental Caterham Superlight R500, then this Ford Sigma-powered Seven Roadsport could be the answer.
It’s the most powerful version of Caterham’s 1.6-litre Seven, with 150bhp rather than 125bhp. While that may not sound like a lot of extra grunt, it adds up to a power-to-weight ratio of 270bhp per tonne, which should be plenty to provide more fun than the lower-powered model.
What’s it like?
Although a hoot in corners, the standard 125bhp version of the Sigma-engined Seven Roadsport has been criticised for feeling a bit underwhelming in a straight line.
This fettled 150bhp version feels far more different than the relatively small increase in power suggests: 25bhp is a big increase in a car that weighs just 550kg.
The Roadsport 150 dismisses the 0-60mph sprint in 5 seconds dead – nearly a second quicker than the 125 model. The extra urge puts another 10mph onto the 125’s 112mph top speed, too.
Peak power is delivered at a rorty 6900rpm, and the engine is happier to rev than that of the basic Sigma. Low down the rev range, though, there’s noticeably less shove.