Saw 3D (The Horsepower Trap)
A man named Evan wakes up, glued to the driver's seat of a car that is propped up on its hind wheels. Evan is told by a tape placed in the tape deck of the car that his friends are in the garage with him and are also a part of his game, and that in order to prevent them from dying through a chain of events, he must reach a lever located in front of him on the outer side of the windshield within 30 seconds. One of his friends Dan is located behind the car, with his arms and jaw chained to the rear end of the car, and his body to a pole behind it. His girlfriend Kara is strapped down underneath one of the propped-up wheels, and his third friend Jake is chained to the garage door directly in front of the car.
In order to pull the lever, Evan has to reach forward and tear a massive portion of his skin off to disconnect from the car seat. The stationary car is also slowly accelerating as the timer counts down. Evan eventually fails to reach far enough in time and the car's hind wheels are released, causing one of the wheels to fall onto Kara's face, crushing it. The accelerating car then speeds in the direction of the garage door and rips Dan chained to the car's arms and jaw off, while speeding through and ultimately killing Jake chained to the garage door. The trap ends with the car having a head on collision with another empty car outside of the garage and Evan being thrown through the window by the impact.