One of just four test 'mules' built by Rover Special Products and John Cooper Garages, of which only two are thought to still exist Tested at a constant 90mph for 20,000 miles to highlight any issues should they be present resulting in Rover giving the project the go ahead Finished in black with an Old English White cap, freshly refinished to a superb level Will be rolling road tested prior to sale and also issued with a fresh MOT An important part of Mini Cooper history awaiting its next custodian One of just four ‘mules’ built, prototype No 0001/B-S is not a mainstream Rover Cooper but in reality a very important car in terms of Mini Cooper history.

Produced by Rover Special Products in conjunction with John Cooper Garages, this particular ‘S’ was used for extensive testing to develop the John Cooper S-conversion which was available on the limited RSP model and the mainstream Cooper.

It was used as a high speed test car being driven at a constant 90 mph for 20,000 miles on the Ger...