Dodge redesigns America's high-performance champ for 2003. Viper gets new styling, new engineering, and even more power. Gone are the GTS coupe and the RT/10 convertible with its roof hoop. Badged SRT-10, Viper is now a true convertible with a manual folding top and heated glass rear window. Wheelbase grows 2.6 inches compared to the 1992-2002 Viper, but overall length shrinks about an inch and curb weight decreases slightly. The convertible top's rigid center section doubles as a tonneau panel with the roof lowered. A V10 engine returns, but it's a new design of 8.3 liters and 500 hp vs. 8.0 and 450. The sole transmission is again a 6-speed manual, and side-mounted exhaust pipes return from the original Viper. ABS is standard. Tires are run-flats on 18-inch front wheels and 19-inch rears. Unavailability of side airbags and antiskid or traction-control systems continues Viper's "pure" 2-seat sports-car posture. The redesigned interior mounts the tachometer directly before the driver, with a 220-mph speedometer to the right. Standard are leather-and-faux-suede seats, tilt steering column, power-adjustable pedals, power windows, air conditioning, and xenon high- and low-beam headlamps.