Read the description of the Viper they have here. It says one of the closest competitors of the VViper is the Volvo and it says it has a 6 speed manual with OD... http://www.car-forums.com/car_specs/spec7.html
it does have a six speed manual with overdrive. 5th and 6th gears are both overdrives. 5th is 0.74:1 and 6th is 0.50:1. of course, you wouldn't actually know that those gears are overdrives, because your technical knowlage is ZERO.
The 2003 Viper is a 2-door, 2-passenger convertible sports car, available in one trim only, the SRT-10. The 2003 Viper's closest competitors include the BMW M, the Mercedes-Benz SL-Class, and the Volvo C70. Upon introduction, the Viper is equipped with a standard 8.3-liter, V10, 500-horsepower engine. A 6-speed manual transmission with overdrive is standard. The 2003 Viper is redesigned for 2003.
I havent looked at any of the other cars on that site, but I imagine similar idiocy. And 996Turbo or whatever the hell your name is, serisoudly pull your head out of your ass!