2021 Toyota Gr Yaris Circuit 4Wd — MOT failures & pass rate
Across 5,577 MOT tests analysed for the 2021 Toyota Gr Yaris Circuit 4Wd, the most common recorded failure areas were tyres, emissions & environmental and visibility. Its pass rate of 94.0% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.6% | 203 |
| 2 | Emissions & environmental | 1.2% | 68 |
| 3 | Visibility | 0.8% | 45 |
| 4 | Lighting & signalling | 0.7% | 39 |
| 5 | Brakes | 0.5% | 29 |
| 6 | Other defects | 0.4% | 25 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 78 |
| 2 | Registration plates | 47 |
| 3 | Tread depth | 41 |
| 4 | Wipers | 34 |
| 5 | Headlamp aim | 27 |
| 6 | Tyre pressure monitoring system | 25 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 11.7% | 650 |
| 2 | Brakes | 5.2% | 292 |
| 3 | Other defects | 2.6% | 148 |
| 4 | Visibility | 1.9% | 107 |
| 5 | Body, structure & corrosion | 0.8% | 45 |
| 6 | Suspension | 0.4% | 21 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 5,016 | 6.0% |
| 30-60k | 534 | 6.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 50 | 4.0% |
| 2024 | 2,706 | 5.5% |
| 2025 | 2,820 | 6.4% |
What to check before buying a 2021 Gr Yaris Circuit 4Wd
Before buying a 2021 Toyota Gr Yaris Circuit 4Wd, focus on the areas it most often fails on. Tyres accounted for 3.6% of tests for this year.
- Tyres (3.6% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Emissions & environmental (1.2% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Visibility (0.8% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Toyota Gr Yaris Circuit 4Wds pass their MOT?
94.0% of the 5,577 2021 Toyota Gr Yaris Circuit 4Wd MOT tests in this dataset passed — a 6.0% fail rate.
What is the most common MOT failure on a 2021 Toyota Gr Yaris Circuit 4Wd?
Tyres, recorded in 3.6% of tests, followed by emissions & environmental (1.2%).
Does the 2021 Gr Yaris Circuit 4Wd get worse with mileage?
Its MOT fail rate rises from 6.0% in the 0-30k band to 6.0% in the 30-60k band.
Methodology & source. Based on 5,577 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.