wet a rag pour a can of coke on it and then rub it on the cement. then get a stiff wire brush and then rrub it against the cement
Dot 3 Brake Fluid
Hydrochloric acid is a common substance that dissolves cement and can be used to effectively remove it.
remove it buy washing with oil
with a chisel?
It will be hard to get off a car. You will have to take it in the dealership and see if they can do it.
cut it out of the clothing
If the cement is not too old, try water and a soft scrub brush.
Smash the car and go to a body shop and tell them your butt in rumbley Smash the car and go to a body shop and tell them your butt is rumbley
Remove and replace it.
with a hammer and chisel
It would be easier to take it out from the bottom so you dont need to remove the body of the car, but I cant see why couldn't remove it from the top.
add a ground wire between the engine and the body