TrothStone

What's your car really worth?

Enter your number plate. We appraise it against 400,000+ live UK listings, show what it costs to keep each month — and what switching would actually do to your wallet. One number, no dealer in the room.

Plates are checked against DVLA. No account, no tracking. Browsing instead? Search every car →

1
Start with the car you own
Your plate tells us the make, model and year. You add the mileage. That's the whole form.
2
See the truth, plotted
Fair value today, where it's heading, and the £/month it truly costs to keep — depreciation included.
3
Decide with the maths, not the marketing
Staying put is always on the table — argued as seriously as switching. No urgency, no deals pushed, ever.
417k
live listings scored
78
makes covered
5
ways to pay, one number
0
ads · dealer money · pressure
One number
True cost £/mo

Depreciation + interest + fees, per car, per payment method. The figure dealers never print.

Deal grades
A–E

Every advert priced against the live market. Grade A means it's priced well under our estimate.

Forecast
24/36/48 mo

What your car will be worth, mileage-adjusted — validated against 4 years of real market history.

Ways to pay, settled with arithmetic

Cash, loan, HP, PCP or lease — every appraisal runs all five and shows which wins for that car. The maths lives inside your answer, not in a deals catalogue. How the number is built →

Zero dealer bias

We don't sell cars, run no adverts, and take no dealer money. Our only output is the number — which is why you can trust it when it says keep what you have.