The Viper is produced with seating for only two, as performance and speed take priority over the possibility of more passengers. It includes wrap-around tail lamps and voluptuous body styling. A wrap around window and an optional convertible top allow it to be one of the most noticed cars on the road. The Viper comes with a 510-hp 8.3-liter aluminum-intensive V10, mated to a Tremec T56 six-speed manual transmission, anti-lock brakes, and a viscous limited-slip differential. Unlike many competitors, the Viper is only available with a manual transmission, with little in the way of electronic driving aids.For 2006, the Viper has only minor changes. Since production is low, changes occur when the car is totally redesigned, which last occurred in 2003.