Porsche
2,027 MOT tests analysed. sits above the UK fleet average — here's where Taycan Turbo Ss pass, fail, and end up on the retest sheet.
That's 15.4 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
92.9%
Pass-after-fix
1.0%
Fail
5.1%
Avg miles
22,549
Pass + Pass-after-fix + Fail = 100%
Electric and hydrogen vehicles are exempt from all UK clean air zone charges.
Performance by cohort
2 year bands · 2,027 tests
Pass rate climbs 3.7 points across the cohorts — newer Taycan Turbo S examples clear the test more reliably than the early cars.
Pass
91.5%
Fail
5.6%
PRS
1.5%
Avg mileage at test
23,485 mi
Pass
95.2%
Fail
4.3%
PRS
0.1%
Avg mileage at test
21,036 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 2,027 MOT tests, the Taycan Turbo S returns 92.9% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a tyre with the cords showing. A seriously damaged tyre and a seriously damaged tyre round out the top three. Average tested mileage sits at 22,549, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
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A tyre cords visible or damaged
42 occurrences · 2.1% of tests
A tyre seriously damaged
25 occurrences · 1.2% of tests
A tyre seriously damaged
22 occurrences · 1.1% of tests
Tyre tread depth not in accordance with the requirements
21 occurrences · 1.0% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
18 occurrences · 0.9% of tests
Number plate does not conform to the specified requirements
10 occurrences · 0.5% of tests
Windscreen or window excessively tinted but not adversely affecting driver's view
8 occurrences · 0.4% of tests
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
6 occurrences · 0.3% of tests
A tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber
3 occurrences · 0.1% of tests
Electronic parking brake MIL indicates a malfunction
2 occurrences · 0.1% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 2 failures
£120–£190
If every one of this Taycan Turbo S's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 3.7-point gap between bands means the year you buy Porsche Taycan Turbo S has a real effect on what turns up at the garage.
Best band to buy
95.2%
2021+ registration
the 2021-on band climbs to 95.2% — a 3.7-point improvement. Failures here are mostly wear items: damaged but not adversely affecting driver's view, tread depth below requirements of 1.6mm — the structural issues that drag down older examples don't appear in the top-10 for this band. Post-2020 examples are early in their MOT life and generally show the cleanest records.
Band to be cautious about
91.5%
2018–2020 registration
On the 2018–2020 band, the data shows a 91.5% pass rate against a fleet average of 95.2% on the newer band. The main culprits logged at test: has ply or cords exposed, has a cut in excess of the…, and has a bulge, caused by separation or…. Average mileage on test for this band is 23,485 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2021+ (95.2% first-time pass). Worst band to avoid: 2018-2020 (91.5% pass). That's a 3.7-point spread across 1,257 older tests and 770 newer ones — year of build makes a material difference on this model.
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Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Taycan Turbo S and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
