That's a "big" AUTO loan for your income, but try
http://www.capitalone.com/autoloans/index.php
They have some incredible rates (I got 4% USED car loan almost 3 years ago on the X5 with a 760 credit score), and the site is still stating 6%. Once you apply, you either get approved or you don't, and they literally send you a blank check for the full amount you were approved for.
36 months—APR as low as 6.09%
48 months—APR as low as 6.19%
66 or 72 months—APR as low as 6.94%