They could sue you (sure...) but RARELY do they win. If they are injured they could file a claim to your insurance company at most... if you are insured you'll be fine.
Yes
no
you must be more specific, who is filing legal action and who are they filing it against? what does this have to do with a car? my answer to your question would have be that it is not a strong case, since not having a car is not illegal.
It won't run properly, you'll have to drain the oil all out.
If you do it on purpose, you can be charged with destruction of property and a number of other crimes. Accidentally do it and you may be fined.
u eventualy lose your car
Nothing happens, except your wallet will be lighter.
your mom happens.
The car may be sold to defray expenses.
your car is now a trash if it crashes
Most of the time, your car may be de-registered.
when your inside a car, and you dont have your seat belt on, your like a missle