Compare two vehicles side by side
Choosing between two used cars? Enter both registrations to see their MOT history, mileage and tax records head to head.
Head-to-head history
MOT pass rates, failures and advisories for both vehicles in one table.
Mileage face-off
Recorded and estimated mileage side by side, so the harder-worked car stands out.
Running-cost signals
Tax status and CO2 output compared, with the stronger value highlighted.
Comparison FAQs
- How does the vehicle comparison work?
- Enter two UK registration numbers and we build both vehicles' records from official DVLA and DVSA data, then line them up row by row: MOT pass rates, failures, advisories, recorded and estimated mileage, tax status and CO2. The stronger value in each row is marked so differences stand out.
- What does the comparison treat as better?
- A newer year, a valid MOT, a higher pass rate, fewer failures and advisories, lower mileage and lower CO2. These are sensible defaults, not a verdict: a well-maintained high-mileage car can be the smarter buy, so always read both full reports before deciding.
- Is comparing two vehicles free?
- Yes, completely. Like every check on Free Reg Check there is no charge, no sign-up and no limit on how many comparisons you run.