if you can afford and want the car, I'd say go for it (but try to get a decent deal on the car - I got $2000 of MSRP on my new Accord EX-L, not the greatest but I got them to pay off my current loan on my trade in, so it wasn't a bad deal).
OR as stated above, shop around a bit too to get the best rate, hopefully <9%.
Then try to improve your scores, pay down some revolving credit card balances to 20% of your open to buy, but keep card accounts open, among other things. After a year, try to get a refinance on your car loan. You may end up with a similar payment for a shorter time but at a lower rate, that'll save you money. Keep up with all your payments and next time you may get the 0.9% rate that I got this time.
I paid something like 19% interest on my first self-financed (used VW Scirocco) car ... but that was in 1980 when the rates were astronomical.