Should I check the MOT history before buying a 2021 Porsche 911 Turbo S S A?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 Porsche 911 Turbo S S A?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 Porsche 911 Turbo S S A?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 Porsche 911 Turbo S S A reliable?

Based on MOT data from 387 vehicles, the 2021 Porsche 911 Turbo S S A has a first-time MOT pass rate of 97.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2021 Porsche 911 Turbo S S A?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Porsche 911 Turbo S S A (2021)

387 real MOT outcomes analysed • 97.7% first-time pass rate

2021 Porsche 911 Turbo S S A

CarHunch analysed 387 real MOT records for the 2021 Porsche 911 Turbo S S A. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Colour Breakdown Compare Models

Moderate sample. 387 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 2021 Porsche 911 Turbo S shows an 83.1% first-time MOT pass rate, marginally above the UK average of 80%, indicating solidly reliable hardware for a high-performance supercar. Dangerous defects are rare at just 1.0%, so safety concerns needn't be a factor in your buying decision.

With a median mileage of just over 10,000 miles for a three-year-old car, these examples have been driven conservatively and show it—averaging only 0.06 failures per vehicle is exceptional. Check the service history and specific mileage carefully when viewing, since low miles and high performance go hand in hand; if one has been tracked or heavily driven despite low recorded mileage, get a pre-purchase inspection from a Porsche specialist.

The 2021 Porsche 911 Turbo S S A passes its MOT first time more often than most UK vehicles (97.7% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

97.7%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.06

Over 1.8 tests on record

Low

Typical mileage

10k

Middle half: 7k–15k

For context

✅ Good baseline reliability. A 97.7% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 387 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 387 Porsche 911 Turbo S S A cars.

Before you buy a 2021 Porsche 911 Turbo S S A

Based on MOT data from 387 vehicles — here's what to check.

📋 Check the full MOT history. 1% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (97%)	377	97.7%	0.06

Colour Breakdown

Based on 2,396 Porsche 911 Turbo S S A vehicles registered in the UK — across all years. From DVLA registration records.

Grey 29.8%

713

Black 27.8%

665

Blue 12.4%

298

Silver 12.1%

290

Green 6.2%

149

White 5.2%

125

Red 3.8%

Yellow 1.3%

Orange 0.9%

Pink 0.5%

Mileage Distribution

Most 2021 Porsche 911 Turbo S S A vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

10,063

typical

6,918

low mileage

14,817

high mileage

Half of all 2021 Porsche 911 Turbo S S A vehicles fall between 6,918 and 14,817 miles.

Is the mileage you're seeing normal?

✓ Under 6,918 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 6,918–14,817 miles — normal for age. This is where most 2021 Porsche 911 Turbo S S As sit.

⚠ Over 20,002 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

1.8

Avg MOT tests per vehicle

0.06

Avg failures per vehicle

0.4

Avg advisories per vehicle

Other model years — Porsche 911 Turbo S S A: All 911 Turbo S S A years → Which year to buy? →

2020 2022 2023 2024

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Compare with another model

See how the 2021 Porsche 911 Turbo S S A stacks up against a rival.

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