Overhaulin' - Can anyone tell me how the cut in interest rates by the feds affect my car loan payments?

Can anyone tell me how the cut in interest rates by the feds affect my car loan payments?

It won't make any difference at all.
if your loan interest rate is based on "Prime" it will lower. If it's a fixed rate then it will not. The interest rate on most Credit Card and Home Equity loans will lower.
Car loans are usually 'fixed' repayments, for a set period, and remain unaffected by any changes to the base rate.