Payment calculator will figure you auto loan payment based on an average interest rate. To determine you exact interest rate you may go to our auto loan finance applicationand fill our the secure form to determine an exact interest rate. If you are looking at a brand new chevy or gmc you can take the low interest rate in lieu of the factory rebate. View the latest interest rates from Ally toward your next new vehicle purchaseor you can contact us and we will be more than happy to assist you with your entire new or used vehicle purchase. Copple Chevrolet GMC's auto finance centeris dedicated to get you a competitive rate so make sure you check with us before you take out an auto loan. Need a little help? We can also help you with special finance.