2020 Porsche 911 · 5,035 MOT tests
2020 Porsche 911 reliability
2020 Porsche 911s fail 3.5% of first MOT tests, 62% fewer MOT fails than the average car its age and mileage, ranking 15 of 25 911 years (5,035 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Porsche 911s: 10.4%)
- 3.5%
- first-time fail rate (all Porsche 911s: 10.4%)
- fails than cars of the same age and mileage
- 62% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 14,593
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 5,035
- MOT tests, 2022 to 2024
Year on year
2020 against the years either side
- 2019 cars: 63% fewer MOT fails than the average car its age (the 2020 car does worse)
- 2021 cars: 62% fewer MOT fails than the average car its age (the 2020 car does better)
- Strong point: tyres, 40% fewer fails than comparable cars.
- Plates: a 2020 car carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
Common problems
What fails on a 2020 Porsche 911
Fail rate by area
- Tyres1.9%
- Number plates and VIN0.9%
- Lights and electrics0.4%
- Exhaust, emissions and leaks0.3%
- Brakes0.2%
- Wheels0.1%
- Body, chassis and structure0%
Average for cars of the same age and mileage
Top failures
Tyre tread below 1.6mm 0.44%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre cut reaching ply or cords 0.28%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Number plate does not meet standards 0.26%
The plate does not meet legal specifications, so it must be replaced with a compliant one before the car is driven.
Headlamp aim set too high 0.16%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Tyre ply or cords exposed 0.14%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre bulge from structural failure 0.12%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Common advisories
Tyre worn close to legal limit (2.07%) · Tyre slightly damaged or cracking (1.23%) · Nail in tyre, monitor (0.91%) · Tyre has a shallow cut (0.52%) · Tyre worn close to legal limit (0.32%) · Brake disc pitted or scored (0.2%)
Other years
Every Porsche 911 year
The full picture: Porsche 911 reliability. Before you pay for any Porsche 911, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2020 Porsche 911 reliable?
2020 Porsche 911s fail 3.5% of first MOT tests, 62% fewer MOT fails than the average car its age and mileage, ranking 15 of 25 911 years (5,035 DVSA tests, 2022 to 2024).
What fails on a 2020 Porsche 911 MOT?
Most often tyre tread below 1.6mm (0.44% of tests), tyre cut reaching ply or cords (0.28% of tests), number plate does not meet standards (0.26% of tests).
How many miles should a 2020 Porsche 911 have done?
At its MOT aged about 3, a typical 2020 Porsche 911 shows 14,593 miles. Much higher or lower is worth asking about.
What plate is a 2020 car?
A car first registered in 2020 carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
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