An auto loan is a type of installment credit used to finance the purchase of a new or used vehicle, with the car itself typically serving as collateral. Because the lender can repossess the vehicle if payments are missed, approval standards are usually less strict than for unsecured personal loans, and rates are often lower as a result. Borrowers generally make fixed monthly payments over a set term, most commonly ranging from three to seven years.

The two factors that most often separate a strong auto loan from a poor one are the interest rate and the loan term. A lower rate reduces the total cost of borrowing, while a shorter term usually means higher monthly payments but significantly less interest paid over the life of the loan. Lengthening the term to lower the monthly payment can make a car seem affordable, but it typically increases the total interest cost and can leave a borrower owing more than the vehicle is worth for a substantial portion of the loan.

When comparing options, readers should focus on the rate offered, the term length, any fees, and whether there are penalties for early repayment. It is also worth checking whether the quoted rate assumes a particular credit tier, since advertised rates are often reserved for the most qualified borrowers.