The Porsche 911 GT2 is a high-performance, track-focused sports car built by the German automobile manufacturer Porsche from 1993 to 2009, and then since 2010 as the GT2 RS. It is based on the 911 Turbo, and uses a similar twin-turbocharged engine, but features numerous upgrades, including engine enhancements, larger brakes, and stiffer suspension calibration. The GT2 is significantly lighter than the Turbo due to its use of rear-wheel-drive instead of all-wheel-drive system and the reduction or removal of interior components. As a result, the GT2 (now GT2 RS) is the most expensive and fastest model among the 911 lineup. 993 generation The 993 GT2 was initially built in order to meet homologation requirements for GT2 class racing. Because the cars were built to meet the GT2 class regulations, the road cars were named accordingly (but badged as the 911 GT). The 993 GT2 featured widened plastic fenders and a larger rear wing with air scoops in the struts for improved engine cooling. The 993 GT2's original engine generated a maximum power output of ; in 1998 it was upgraded to . 57 road cars were built (thirteen of which were right-hand drive). Technical specifications Configuration: Air-cooled twin-turbocharged 2 valves per cylinder Porsche flat-six engine Displacement: Bore × stroke: × Maximum power: at 6,000 rpm Specific power: Maximum torque: at 3,500 rpm (1998 MY) Specific torque: Length: Width: Height: Wheelbase: Front track: Rear track: Curb weight: Power-to-weight ratio: 259.2 W/kg (6.34 lb/hp) Top Speed: 0–97 km/h (60 mph): 3.9 seconds 0–161 km/h (100 mph): 8.7 seconds 1/4 mile (402 m): 12.1 seconds at 996 generation In 1999, the 993 was replaced with the new 996 model. The new GT2 took two years to develop and during that time, Porsche decided to abandon the GT2 for motorsports use, instead concentrating on competing in GT3 class racing with the new naturally aspirated 911 GT3. Developed primarily as a road car in contrast to its predecessor, the new GT2 featured a twin-turbocharged version of the GT3's flat-six engine. It generated a maximum output of , which was later increased to . Like the 993 GT2, the body of the 996 GT2 differed significantly from those of other 996 variants; major differences included wider fenders, a more aggressively shaped nose, and a large rear wing. According to road testing performed by Car and Driver magazine, the GT2 suffers from hardly any turbo lag. Despite