The last Mk I variant to be produced using the Tritec engine was the Mini Cooper S with John Cooper Works GP Kit. a light-weight, quasi-race-prepped John Cooper Works model. Hand-finished by Bertone in Italy, it was offered as a limited-production run of 2000 cars during the 2006 model year, with 444 of those originally intended for the UK market (although ultimately, 459 were sold). The GP features more bolstered front seats but had no rear seats, which along with reduced sound-deadening, removal of the rear wash-wipe system, optional air-conditioning, and other weight-reduction steps, resulted in a weight saving of around 40 kg (88 lb) compared to a Cooper S. Additionally, the car had enhanced braking, suspension, a smooth under-body and 218 hp (163 kW) from the John Cooper Works engine modification package. In place of the rear seats there is additional body stiffening and below-floor storage areas. The car also offered many unique styling points, such as the red door mirrors, a carbon fiber rear spoiler, unique body kit, bespoke (2 kg lighter) 4-spoke alloy wheels, and specialized badging. Available in just one color scheme (Thunder Blue with a Pure Silver roof), each car was individually numbered and featured a decal on the roof along with a plaque on the dashboard. The last of the supercharged Minis and a genuine Limited Edition model, there is a high potential for the Mini Cooper S with John Cooper Works GP Kit to become a collector’s item.