All young fellas play with cars, even fellas that aren't so young anymore...
At first you'll play with cars because its fun, then later because you have some things on them you want done, and finally you play with cars because they break and you simply have to. Occasionally you will still play with cars because you can, because you want something that makes your car go harder, perform better or just plain look good.
Basically, there is no real "enjoyment" in the act of working on cars, but there is a lot of satisfaction when the work is done.
