The new 997 GT2 remained based on the 3.6 litre flat-6 engine, but now featured twin variable geometry turbochargers, which generated 530 hp (395 kW) at 6500 rpm. The GT2 accelerates in 3.6 seconds to 60 mph (97 km/h) and in 7.4 seconds to 100 mph (161 km/h) and has a maximum top speed of 204 mph (328 km/h) This makes it the first Porsche 911 to exceed the 200 mph (322 km/h) top speed, with the exception of the 1998 Porsche 911 GT1 which is not considered by enthusiasts to be an actual Porsche 911 due to its mid-mounted engine.[citation needed] The Porsche 997 GT2 also has a curb weight of 3175 lb, 505 lb�ft (685 N�m) of torque from 2200 to 4500 rpm, and a 6-speed manual gearbox. The American auto magazine Motor Trend recently tested a 2008 Porsche 911 GT2 0-60 mph at 3.4 seconds[3], and 11.4 seconds at 127.9 mph (205.8 km/h) for the quarter mile. The GT2 also recorded a braking distance from 60 mph (97 km/h) to 0 of 98 feet (30 m) and recorded 1.10g lateral grip. The appearance of the 997 GT2 once again differs from its sister-car, the 997 Turbo. It has a revised front lip, also carries a newly designed rear wing with two small air inlets on either side, and it has a different rear bumper now featuring titanium exhaust pipes and shark fin outlets. German Porsche test driver Walter R�hrl recently lapped the N�rburgring Nordschleife on a public day in 7 minutes 32 seconds in the new 997 GT2, besting supercars like the Bugatti Veyron and Mercedes-Benz SLR McLaren and only slightly trailing the Nissan GT-R.