UK Answer: Sorry, you have to be over the age of majority to take out a loan as you'll need to sign a credit agreement which couldn't be enforced if you were under 18.
If you are sure of your ability to repay the loan, perhaps speak to a relative about loaning you the money.
The absolute best thing you can do is save for the car. Yes, saving is tough, but this will teach you a very valuable lesson - credit is expensive and getting into the habit of saving is really one of the best things you can do!
