year time period. GT production started in around February 1989. 11) Count contains 955 1992, 621 1993, 523 1994 and 399 1995 European models resulting 2,498 cars made. Count contains 88 early VIN 1993, 102 late VIN 1993, 19 + 120 1994 and 77 1995 US models resulting 406 cars made. Special versions Porsche 942 The Porsche 942 was a special edition 928 presented by the company as a gift to Ferry Porsche on his 75th birthday in 1984. It's also known as the 928–4. It featured a longer wheelbase than the normal 928 production model, including an extended roof above the rear seats to better accommodate tall passengers, and what were at the time very advanced projector headlights. The weight increased marginally, by . It also received the new front and rear bumpers two years before they entered production on the S4 and the 5.0-litre 32-valve engine before it was introduced in the US market. This early model of the engine was slightly less powerful, producing and of torque at 2700 rpm. "Study H50" Four-door 928 based prototype Three years later, in 1987, the lengthened 928 that had been presented to the company's founder on his 75th birthday turned up as a "Feasibility Study", now with a second (rather narrow) set of doors, apparently opening in the same way as the suicide doors seen on the later Mazda RX-8. At the time "Study H50" appeared to sink with little trace, but two decades later, with the launch of the larger four-door Porsche Panamera saloon, the 928 based four-door saloon prototype from 1987 acquired greater significance. 928 long wheelbase specials In 1986 Porsche together with tuning company AMG made a few long-wheelbase 928 specials. Unlike the 942, these had normal 928 headlights. One was presented to American Sunroof Corporation (ASC) founder and CEO Heinz Prechter. ASC was later partly responsible for manufacturing Porsche 944 S2 cabriolets. Racing The Max Moritz 'Semi Works' 928 GTR Porsche's Racing Department never officially entered or prepared a racing 928 for a pure works entry. Only once Porsche decided to make it obvious to the 911 enthusiasts that they usually tended to underrate the racing genes of the 928. Porsche then "arranged" this 928GTR to compete against the then-dominant 911 (993GTR) on the race track. In order not to offend sensibilities of their traditional 911 customers by openly challenging them with a Works 928GTR offering,