Dealer add-ons explained
Most dealer add-ons are optional. VIN etching, nitrogen and paint/fabric protection are usually poor value; GAP and service contracts can make sense for some buyers but are often cheaper elsewhere. Financing an add-on adds tax and interest on top of its price.
| Add-on | What it is / our verdict |
|---|---|
| VIN etching | Junk. Your VIN is already stamped in several places on the car, and DIY kits cost $10–$30. Ask for it to be removed. |
| Paint & fabric protection | Junk. New cars' paint, frames and fabrics are built to last without dealer treatments. Ask for it to be removed. |
| Nitrogen tire fill | Junk. Regular air is already mostly nitrogen, and the tested benefit is tiny. Ask for it to be removed. |
| GAP insurance | Negotiable. It's optional and only helps if you owe more than the car is worth. Decline it or compare your insurer's price first. |
| Extended warranty / service contract | Negotiable. It's an optional service contract: decline it, buy it later, or negotiate the price hard. |
| Theft protection / LoJack | Junk. It's an optional theft product that's often pre-installed and charged without being asked for. Ask for it to be removed. |
| Window tint | Negotiable. Tint has real value if you want it, but it's optional: decline it or match a tint shop's price. |
| Dealer add-on package | Junk. A pre-installed bundle you didn't ask for. You don't have to pay for it, even if the dealer says it's already on the car. |
What an add-on really costs when financed
Worked example (our calculator, same math as Check the Price): $20,000 car, 8% tax, $85 doc fee, $500 registration, 9% APR for 60 months. Adding a $1,500 taxable add-on raises the payment from $460.67 to $494.29 and the total paid by $2,017.71, not $1,500.
The FTC says a dealer can't charge you for add-ons you didn't agree to (FTC). Service contracts are explained by the FTC.
Next step: Ask to remove add-ons (message builder) →
Sources
- FTC, Car dealerships can't charge you for add-ons you don't want
- FTC, Auto Warranties and Auto Service Contracts
Last reviewed October 12, 2026 by TrustBuy Expert. General information, not legal or financial advice.