To piggyback on that, if you do joint finance with spouse then just know they do use both scores and this CAN be a negative.Navy federal is great. If you are close to or above 800 you will get those advertised numbers or lower for retirees or active duty, .75 points cheaper. Best rates for sure. 60 months now is at 4.29 - .75 = 3.54 (cannot beat that)
For example, my wife was at 760ish and putting her on did bump my interest (~$30 per month) but worth it to get something flowing on her end. (We haven't had an auto or home loan in many years, so the stagnant credit hurt).