MotorTrend Wow! Both the 1,250-hp ZR1X and 1,064-hp ZR1 easily broke the seven-minute barrier—with GM engineering employees, not pro racers, behind the wheel.
Wow! Both the 1,250-hp ZR1X and 1,064-hp ZR1 easily broke the seven-minute barrier—with GM engineering employees, not pro racers, behind the wheel.