Not to be too annoying about it but they're FICO. I work for Fair Isaac

. FICA is what you pay for Social Security and Medicare.
A big chunk of it is FICO...another big chunk of it is how much the dealer thinks he can get away with. Ed Voyles Acura salesman thought I was in love enough w/ a TSX to pay MSRP and 7.7% despite my nearly 800 credit score. Infiniti was nice enough to give me 4.9...they would have given me 2.9% on the coupe but I had enough coupes for now. My sister-in-law has over an 800 but she fell in love w/
her IS350 and the dealer got her to pay 6.5% w/ 15k down.