If you don't continue to make the payments, the lender will reposess the car and sue you in small claims court. If the court finds in their favor, the lender will have a judgement against you for the remaining amount on the loan. They will then proceed to garnish your wages and, if possible, put a "freeze" on your bank accounts.

A lot of people bite off more than they can chew.

This is an old phrase, but its as good today as ever.

Your credit is going to suffer.

Call the dealer, call the creditor and explain your situation. make arragements to return the vehicle.

Voluntarily returning the vehicle is much better on your credit, than having it repoed.

Next time, buy a horse. its uses less gasoline.

What you have is called an "Upside down loan", because you owe more than the asset is worth. What you can do it take it to a reputable dealer. He will pay off the loan, and sell you a car you can afford, with lower payments, longer term, but higher interest rate.

Another solution is to take out a personal loan for a longer term, with lower payments, but both of these solutions are based on higher interest.