“The idea is relatively simple. The lender never sees the car and doesn’t do any mechanical checks on it.
A used car might have mechanical defects—plus the car’s already taken a hit on depreciation. To counteract the risk, lenders typically offer a higher interest rate.
For a new car, they know that the vehicle is in mint condition. There’s little risk of mechanical failure, making their collateral (the vehicle) worth more. Therefore, lenders can offer a lower rate.”