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 Seat Arona Petrol 999cc has had 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 40,991 miles on the clock, averaging 13,342 miles per year, above the UK average of 7,400.
MOT & Mileage History for SG21 THT
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
Above average| Latest reading | 40,991 miles |
| Reading date | |
| Miles last year | 13,759 |
| Average per year | 13,342 |
| Mileage consistency | Consistent |
Check SG21 THT
- 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 4 tests on record
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Vehicle Details
| Registration | SG21 THT |
| Make | Seat |
| Model | Arona |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2021 |
| First registered | |
| Area code | SG — Glasgow, Scotland |
| Age identifier | 21 — March 2021 to August 2021 |
More SG21 T plates
Browse all SG21 T registrations from Glasgow.
About SG21 THT
What car is SG21 THT?
SG21 THT is an grey Seat Arona, petrol (999cc). First registered in Glasgow in 2021.
What is the mileage of SG21 THT?
The last recorded mileage for SG21 THT was 40,991 miles, recorded on 29 Oct 2025 during its most recent MOT test.
Has SG21 THT passed its MOT?
SG21 THT has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 29 Oct 2025.
Is SG21 THT ULEZ compliant?
Based on its fuel type and registration year, SG21 THT 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 SG21 THT?
SG21 THT is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.