Chevrolet will unveil at the 2008 Detroit Auto Show the Corvette ZR1. So, the Viper was left behind considering power. So Hennessey Performance Engineering (HPE) announced that it is introducing the company’s first high-performance upgrade system for the new 2008 Dodge Viper SRT10. Known as the Venom 650R, the engine modifications increase by 78 horsepower giving the Viper the ability to accelerate from 0 to 150 mph 1.5 seconds quicker (15.5 sec. versus 17.0 sec.) than the already factory-fast 2008 Viper that offers a stout 600 horsepower.