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 2016 Seat Mii Petrol 999cc has had 11 MOT tests on record, passing 8 and failing 3 (73% pass rate). It has 53,988 miles on the clock, averaging 7,251 miles per year, below the UK average of 7,400.
MOT & Mileage History for HN66 CDO
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 | 53,988 miles |
| Reading date | |
| Miles last year | 280 |
| Average per year | 7,251 |
| Mileage consistency | Variable |
Check HN66 CDO
- Write-off & insurance claims Experian
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- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 11 tests on record
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Vehicle Details
| Registration | HN66 CDO |
| Make | Seat |
| Model | Mii |
| Colour | White |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2016 |
| First registered | |
| Area code | HN — Portsmouth, Hampshire and Dorset |
| Age identifier | 66 — September 2016 to February 2017 |
More HN66 C plates
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About HN66 CDO
What car is HN66 CDO?
HN66 CDO is an white Seat Mii, petrol (999cc). First registered in Portsmouth in 2016.
What is the mileage of HN66 CDO?
The last recorded mileage for HN66 CDO was 53,988 miles, recorded on 11 Feb 2026 during its most recent MOT test.
Has HN66 CDO passed its MOT?
HN66 CDO has had 11 MOT tests with a 73% pass rate (8 passes, 3 failures). It last passed on 11 Feb 2026.
Is HN66 CDO ULEZ compliant?
Based on its fuel type and registration year, HN66 CDO 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 HN66 CDO?
HN66 CDO is approximately 10 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.