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 Mercedes-Benz C 300 Amg Ln Ngt Ed Prm+D 4m A Diesel 1950cc has had 6 MOT tests on record, passing 4 and failing 2 (67% pass rate). It has 33,374 miles on the clock, averaging 6,505 miles per year, below the UK average of 7,400.
MOT & Mileage History for KN21 NPO
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 | 33,374 miles |
| Reading date | |
| Miles last year | 4 |
| Average per year | 6,505 |
| Mileage consistency | Consistent |
Check KN21 NPO
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- Service interval analysis
- Warranty work logged
Full MOT Test History 6 tests on record
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Vehicle Details
| Registration | KN21 NPO |
| Make | Mercedes-Benz |
| Model | C 300 Amg Ln Ngt Ed Prm+D 4m A |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1950cc |
| Year | 2021 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KN21 N plates
Browse all KN21 N registrations from Luton.
About KN21 NPO
What car is KN21 NPO?
KN21 NPO is a grey Mercedes-Benz C 300 Amg Ln Ngt Ed Prm+D 4m A, diesel (1950cc). First registered in Luton in 2021.
What is the mileage of KN21 NPO?
The last recorded mileage for KN21 NPO was 33,374 miles, recorded on 4 Mar 2026 during its most recent MOT test.
Has KN21 NPO passed its MOT?
KN21 NPO has had 6 MOT tests with a 67% pass rate (4 passes, 2 failures). It last passed on 4 Mar 2026.
Is KN21 NPO ULEZ compliant?
Based on its fuel type and registration year, KN21 NPO is likely ULEZ compliant. Diesel post-2015 (Euro 6). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is KN21 NPO?
KN21 NPO is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.