Vehicle summary
ULEZ status is estimated based on fuel type and registration year. It may not reflect the actual emission standard of this vehicle. Check with TfL for a definitive answer.
At a glance
This 2021 Mazda 3 Petrol 1998cc has had 3 MOT tests on record, passing every one. It has 43,597 miles on the clock, averaging 14,913 miles per year, above the UK average of 7,400.
MOT & Mileage History for SN21 HHX
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
Above average| Latest reading | 43,597 miles |
| Reading date | |
| Miles last year | 20,381 |
| Average per year | 14,913 |
| Mileage consistency | Variable |
Check SN21 HHX
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
- Ownership changes Experian
- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 3 tests on record
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Vehicle Details
| Registration | SN21 HHX |
| Make | Mazda |
| Model | 3 |
| Colour | Red |
| Fuel type | Petrol |
| Engine | 1998cc |
| Year | 2021 |
| First registered | |
| Area code | SN — Edinburgh, Scotland |
| Age identifier | 21 — March 2021 to August 2021 |
More SN21 H plates
Browse all SN21 H registrations from Edinburgh.
About SN21 HHX
What car is SN21 HHX?
SN21 HHX is an red Mazda 3, petrol (1998cc). First registered in Edinburgh in 2021.
What is the mileage of SN21 HHX?
The last recorded mileage for SN21 HHX was 43,597 miles, recorded on 28 Oct 2025 during its most recent MOT test.
Has SN21 HHX passed its MOT?
SN21 HHX has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 28 Oct 2025.
Is SN21 HHX ULEZ compliant?
Based on its fuel type and registration year, SN21 HHX is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is SN21 HHX?
SN21 HHX is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.