Caterham Cars have unveiled the Superlight R600 their latest race-ready development of the Caterham Seven which features a supercharged 2-litre Ford Duratec engine producing 275bhp.

The launch of the R600 also signals the launch of the Superlight R600 Championship which makes its debut in 2013. Caterham is expecting at least a 16-car grid for the debut championship season in 2013, with 30 cars anticipated to compete the following year.

The car will cost £44,995 and be the first Seven to include induction technology, making it the fastest ever production incarnation with a natural progression from the SP/300.R, which uses a similar power plant.

Simon Lambert, Caterham’s Chief Motorsport and Technical Officer, said: “Caterham racing just got even more interesting.

“As the fastest Seven we’ve ever built, this will provide our existing R300 racers with a real step up and a new and exciting challenge, even for experienced drivers. The R600 represents an increase in aggressiveness, although the linear power delivery of the supercharged engine makes it superbly driveable, much like the R300.”

The R600 specification also includes a Titan limited-slip differential and Avon radial slicks or wets.

The latest variant of the Seven can be bought as a new car or existing R300 owners can upgrade their vehicles to R600 spec. Exact price will be confirmed in the coming weeks.