http://www.scion.com/buy/payment_calculator/
Best APR on that I saw was 2.69% which is a little higher than what I got from them. They'll lower it a bit if you have a large down payment (>5 figures I believe) and having a promotion like military or recent graduate also helps. Of course this is only considering TFS, a good Credit Union should be able to do even better. You won't get less than 2% out of TFS at the moment but under 3% (providing you have the credit to back it up) should be possible.