Used Car Interest Rates 2024. Penfed credit union is the best overall auto loan lender thanks to its wide selection of loan types and competitive rates, according to our research. The average auto loan interest rate in the first quarter of 2024 was 6.73% for new vehicles and 11.91% for used vehicles, according to experian.

Experian also provides average car. In this article, we at the marketwatch guides team will break down auto loan interest rates by credit score, state and vehicle type — for new and used car loans.