A gas tank
a bumper?
I will bite what road kill?
A bunch of people to push?
A dog on a leash?
A license plate?
Tail lights?
a rocket motor?
A picture of the ex so you go faster away from it?
Dam you Memi a trick question just figured it out.....a driveshaft you almost got me. I was just having fun, Karl can finish up I am sure he can add to the list.