2020 Porsche Taycan 4S 93Kwh — MOT failures & pass rate
The 2020 Porsche Taycan 4S 93Kwh passed 91.6% of its 3,975 recorded MOT tests. All cars of a similar age fail at 9.4%, so the 2020 Taycan 4S 93Kwh sits squarely on the average. Failures cluster in tyres, other defects and lighting & signalling.
What the MOT record shows
Tyres dominates the failure mix at 7.2% of all tests — 6.5 points clear of other defects, so it is the first thing to check.
At component level the recurring items are registration plates, tread depth and headlamp aim — registration plates alone was recorded 45 times.
Mileage is the strongest signal on the record: 7.4% of 0-30k cars fail, rising to 14.8% once past 60-90k.
Advisories point at the next bill rather than this one: tyres was flagged on 19.8% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 7.2% | 288 |
| 2 | Other defects | 0.7% | 28 |
| 3 | Lighting & signalling | 0.5% | 19 |
| 4 | Brakes | 0.4% | 15 |
| 5 | Suspension | 0.3% | 12 |
| 6 | Visibility | 0.1% | 6 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Registration plates | 45 |
| 2 | Tread depth | 44 |
| 3 | Headlamp aim | 16 |
| 4 | Ball joint | 10 |
| 5 | Tyre pressure monitoring system | 6 |
| 6 | Washers | 5 |
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 | 19.8% | 785 |
| 2 | Other defects | 3.5% | 137 |
| 3 | Visibility | 1.8% | 73 |
| 4 | Brakes | 1.2% | 47 |
| 5 | Lighting & signalling | 0.5% | 19 |
| 6 | Road wheels | 0.4% | 17 |
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 | 2,191 | 7.4% |
| 30-60k | 1,612 | 9.1% |
| 60-90k | 162 | 14.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 1,312 | 9.4% |
| 2024 | 1,316 | 7.2% |
| 2025 | 1,337 | 8.6% |
What to check before buying a 2020 Taycan 4S 93Kwh
On a 2020 Taycan 4S 93Kwh, tyres is what the MOT record says goes wrong most — it appeared in 7.2% of tests. Check these areas before you commit.
- Tyres (7.2% 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.
- Other defects (0.7% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
- Lighting & signalling (0.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£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 2020 Porsche Taycan 4S 93Kwhs pass their MOT?
91.6% of the 3,975 2020 Porsche Taycan 4S 93Kwh MOT tests in this dataset passed — a 8.4% fail rate.
What is the most common MOT failure on a 2020 Porsche Taycan 4S 93Kwh?
Tyres, recorded in 7.2% of tests, followed by other defects (0.7%).
Does the 2020 Taycan 4S 93Kwh get worse with mileage?
Its MOT fail rate rises from 7.4% in the 0-30k band to 14.8% in the 60-90k band.
Methodology & source. Based on 3,975 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.