developed throughout the production. At the beginning of the production the standard equipment of the Calibra 8 valve was a 20W two-speaker stereo with cassetteplayer, sports seats front with adjustable height on the driver's side, split folding rear seats, ABS, power steering, electric side mirror adjustment, analog clock on the middle console, makeup mirrors in the sunvisors, lockable glovebox, tinted windows, 14-inch alloy wheels and bumpers in body color. Features like air-conditioning, electric windows, fog light, board computer and sun roof were optional. By contrast better equipped facelifted models with larger engines offered air-conditioning, traction control, electric windows, a 30W 6 speaker stereo system (or 150W Bose with 6 speaker plus additional subwoofer), CD-changer, central locking, immobiliser, leather upholstery with heated front seats, board computer, sunroof, two airbags with pre-tensioners, alarm system with motion sensors, 15 or 16 inch alloy wheels, etc. Exterior colors The Opel Calibra was available in 28 colors throughout the production run, out of which only 9 were black, gray or white. Although only about a half dozen colors were offered simultaneously at certain time periods, meaning colors on the palette were changed quickly. Limited editions usually featured even less color options, than the standard. During the total production period the following colors were available indicated with code, original German and English names and type of lack: In case of Cliff Motorsport Edition the following color names were applied: Ocean = Magneticblau, Polar = Karibikblau, Barracuda = Keramikblau. Some late Keke Rosberg and DTM models were painted in colors from the standard palette. Colors and special editions offered may be different on certain domestic markets. Engines Power was initially from 2.0 litre 8 valve C20NE, and a Cosworth designed 16 valve fuel injected C20XE four cylinder redtop petrol engines. For 1992, a turbocharged 2.0 litre 16 valve engine C20LET (turbocharged version of the C20XE) was added to the range. With four wheel drive, a six speed Getrag manual transmission (F28/6) and a claimed top speed of 245 km/h (152 mph). The Turbo model was also notable for the five stud wheel hubs and the extreme negative camber (inward lean) of its rear wheels. In 1993, a 2.5 litre V6 (C25XE or SE4) was introduced, available with both manual and automatic transmissions. The V6 was not as fast as the Turbo, but was rather more civilised, and proved to be more reliable than the complex four wheel