the 350Z, powered by the 3.5 L VQ35DE V6 producing , and styled in an attempt to create a more modern interpretation of the 240Z's lines. It had a new six-speed manual gearbox, and is capable of over . The 350Z's engine was updated twice; in 2005 to the VQ35DE RevUp, producing , and in 2007 to the VQ35HR, producing . The 370Z features a 3.7L VQ37VHR V6 producing . This engine shares much of its architecture with the VQ35HR, the primary differences being the introduction of Nissan's VVEL (Variable Valve Event and Lift) and an increase in overall displacement. Due to the similarities between the two engines, many OEM and aftermarket parts are interchangeable. The new 370Z, like the previous two generations, is electronically limited to 155 mph (249 km/h). The seventh generation Z is powered by a twin-turbocharged 3.0L VR30DDTT V6 producing and 350 lb-ft of torque mated to a six speed manual transmission complete with an Exedy clutch or a nine-speed automatic Jatco transmission. Racing The 280ZX proved successful in various classes of racing, particularly in the US. Significant results include: The first generation Zs (240Z/260Z/280Z) proved to be very successful in many forms of racing. The S30s won many SCCA/IMSA championships and even became quite successful in rally and baja races. 1979 SCCA C Production Category (Bob Sharp Racing 280ZX) 1979 and 1980 IMSA GTU Championship (Electramotive Datsun 280ZX) 1982 and 1983 IMSA GTO Championship (Electramotive Datsun 280ZX Turbo) The 1983 Electramotive 280ZX Turbo produced over , and reached a terminal speed of in the standing quarter mile. The most notable driver to be associated with the car was actor Paul Newman, who raced with the Bob Sharp Racing team. He also helped to promote the car, even by starring in a series of commercials. In 1984 to 1985 showroom stock racing, the 300ZX captured wins on numerous occasions. The car scored its only Trans Am win in 1986 at Lime Rock by Paul Newman for Bob Sharp Racing. From 1985 to 1987, the Electramotive-developed GTP ZX-Turbo was raced in the IMSA GT Championship's GTP class and also the All Japan Sports Prototype Championship, badged as a Fairlady Z, using a Lola T810 chassis and a VG30ET engine. Following development through 1987, the car would become dominant in IMSA GT in 1988. Additional factory endorsement, combined with a new chassis, transmission and more reliable Goodyear tires