If you mean stealing a car you could go to jail depending on how old you are if you're under 14 either juvie or "a warning" and sent home to your parents.
You could be charged with burglary and grand theft auto.
Consequences can be charging you with car theft.
none, unless you drive the car. the consequences for that are from tickets to jail time.
the moral consequences are that you will feel like a dinosaur
no.
suspended license
If you're making payments you signed a contract. When you return your car you've broken your contract. Yes there is consequences when you break a contract.
death
Without proper permission (in writing) to take your car after it's been repossessed, it is considered stealing. Anything from jail time to a hefty fine. If it's been repo'd, it's not yours anymore.
It means your car is broken
you figure out the speed of the car by taking the time it was taking to get to you and the estimated distance that car was away from you.
I suppose it would depend on your morals. If you believe that taking drugs is wrong, then you might be in a bit of a moral quagmire if you find yourself taking them.