The Mini Cooper comes with 115-horsepower available as a convertible or hatchback. The hardtop Minis are four-seat, three-door hatchbacks. The Mini is front-wheel drive with a transversely mounted 1.6-liter four-cylinder engine. The John Cooper Works performance kit includes a high-output supercharger, performance cylinder head, stainless steel sport exhaust, sport-tuned ECU, high-flow injectors, cold-firing sparkplugs, electronic low-restriction airbox, JCW-logo silver intercooler surround, valve cover authentication plaque, JCW brake kit with 11.5-inch vented front rotors, performance front calipers painted red with JCW logo, larger performance-composition front and rear pads, and a limited slip differential. Safety features include anti-lock brakes with electronic brake force distribution, front airbags and front side-impact airbags, curtain-style head-protection airbags for all passengers, seatbelt pretensioners, and a crash sensor that automatically unlocks the doors.For 2006, The MINI Cooper gets a new Checkmate trim package with exclusive interior and exterior modifications is now being offered for sedan models. And the John Cooper Works performance package can now be ordered as a factory-installed option or as a dealer-installed option.