The Corvette ZR1X’s top speed is 233 mph, with a 0-60 mph time of under two seconds, according to GM. The vehicle’s LT7 twin-turbo V-8 engine that’s shared with both ZR1 models is rated at 1,064 horsepower and 828 foot-pounds of torque, the company said. Adding to the performance of the ZR1X is an electric axle that makes the vehicle all-wheel drive and gives it an additional 186 horsepower and 145 foot-pounds of torque, GM said.