Little is known about the model, although it is likely to carry a tuned version of the Cooper S’s 1.6-litre turbocharged engine. Power is likely to be rated at around 220bhp.
Mini said: "With a particularly high-performance turbo engine, racing-oriented suspension technology and exclusive, aerodynamically optimized body components, the Mini John Cooper Works GP follows in the footsteps of its predecessor, which caused a stir back in 2005 as the most powerful and the fastest road-approved Mini at the time."
Test mules have been spotted. The Mini GP II will have a lower ride height and bespoke bumpers, rear diffuser and rear tailgate spoiler. A modern take on the original GP’s four-spoke alloy wheels are likely to be fitted as standard.
It is not yet known whether the GP II will have two or four seats; the original had a stripped-out rear with an exposed strut brace. Like the previous car, which was limited to 2000 units, it is likely the Mini GP will be a sought-after special edition.
Dr Segler also revealed the Mini Countryman JCW will launch in North America this year.
A special edition version of the hatchback will also be launched. The Mini 10 Years Anniversary will be offered to American buyers, celebrating a decade of the brand's involvement in the market. Based on the Mini Cooper, it will be offered with a choice of three colour schemes: red, white and blue reflecting the colours on the American flag.
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