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 2001 Mazda Mx-5 Petrol 1840cc has had 22 MOT tests on record, passing 20 and failing 2 (91% pass rate). It has 137,803 miles on the clock, averaging 6,661 miles per year, below the UK average of 7,400.
MOT & Mileage History for HX51 ONJ
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
Below average| Latest reading | 137,803 miles |
| Reading date | |
| Miles last year | 633 |
| Average per year | 6,661 |
| Mileage consistency | Variable |
Check HX51 ONJ
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- Warranty work logged
Full MOT Test History 22 tests on record
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Vehicle Details
| Registration | HX51 ONJ |
| Make | Mazda |
| Model | Mx-5 |
| Colour | Silver |
| Fuel type | Petrol |
| Engine | 1840cc |
| Year | 2001 |
| First registered | |
| Area code | HX — Portsmouth, Hampshire and Dorset |
| Age identifier | 51 — September 2001 to February 2002 |
More HX51 O plates
Browse all HX51 O registrations from Portsmouth.
About HX51 ONJ
What car is HX51 ONJ?
HX51 ONJ is an silver Mazda Mx-5, petrol (1840cc). First registered in Portsmouth in 2001.
What is the mileage of HX51 ONJ?
The last recorded mileage for HX51 ONJ was 137,803 miles, recorded on 25 Feb 2026 during its most recent MOT test.
Has HX51 ONJ passed its MOT?
HX51 ONJ has had 22 MOT tests with an 91% pass rate (20 passes, 2 failures). It last passed on 25 Feb 2026.
Is HX51 ONJ ULEZ compliant?
Based on its fuel type and registration year, HX51 ONJ is likely not ULEZ compliant. As a petrol vehicle registered in 2001, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is HX51 ONJ?
HX51 ONJ is approximately 25 years old. Age identifier 51 means registered between 1 September 2001 and 28 February 2002.