More than doubling a car's output is always impressive, but especially so when you're talking about a motor that already puts down close to 650 horsepower in stock form. What we have is being described as the most powerful Corvette ZR1 on the planet which, until we hear otherwise, we have no trouble believing. Seen at the Texas Invitational, the KP Racing-built ZR1 is boasting a colossal 1,300 hp and it sounds absolutely brutal on the track.

Just watch it prepare for takeoff – there is so much power the ZR1 can barely contain itself.