Financing · 8 min read
A single percentage point on a $35,000 auto loan costs roughly $900 over five years. Yet most buyers spend more time picking a color than shopping their loan. This guide fixes that.
Updated October 2026 · By the CARC research team
Auto lenders price in tiers: super-prime (781+), prime (661–780), near-prime (601–660), and subprime (below 600). Each tier down can add 2–4 percentage points to your rate.
Check your score before shopping. If you are near a tier boundary, even a small improvement — paying down a card balance — can save you thousands.
Apply to your bank, a credit union, and an online lender before visiting the dealer. Credit unions consistently offer the lowest auto rates.
Multiple auto-loan inquiries within a 14-day window count as a single hard inquiry for scoring purposes — so shop aggressively without fear.
A 72- or 84-month loan lowers your monthly payment but massively increases total interest — and leaves you underwater (owing more than the car is worth) for years.
The 20/4/10 rule: 20% down, max 4-year term, total car costs under 10% of gross income. If the car you want does not fit, it is too much car.
Dealers can mark up the interest rate the lender offers them — often by 1–2 points — and pocket the difference. Always ask: "Is this the buy rate or is there a markup?"
With a pre-approval in hand, let the dealer try to beat it. If they can, great. If not, you already have your loan.
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