Auto loan- Wife has excellent credit I don't have any credit. Who should sign?

Q) I have recently arrived into the USA from England and although I had excellent credit in the UK it counts for squat here! I'm also self employed which doesn't help either. My wife (the reason I moved here) has excellent credit. We are looking at getting a Capital One Auto loan as we need to purchase a new car and we don't want to be locked into car dealership finance schemes. We are trying to figure out if it would be better for her to sign the loan agreement alone, or If I were to joint sign would the fact that I have no credit status yet significantly increase the APR, or worse be rejected and thus put a blight on her credit score. I called Capital One, but they told me the system was automated and they didn't know what would happen until the actual application was sent. For some reason they can't run both scenarios on spec just to compare.

A) You should get the loan with her as a co signer. Yes the interest would be higher, but it would allow you to establish your credit here. Getting a denial won't put a blemish on her record, someone checking her credit might, but also, if you go to like several different places for auto financing and they all check your credit, others are going to look at the credit report and just say that you were checking to see who had the best rates. The FICO score might go down a little, but probably not, if she doesn't go out and sign up for every card she sees. But like i said, even if it does, a person who would actually look at your report is going to see that obviously you didn't just decide to go on a credit card spree or anything like that, and they will take that into consideration.