CarCostCheck

MINI COOPER S (2021)

Running costs, common problems, and reliability data based on 22,000 real MOT tests in 2024.

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MOT Pass Rate

93%

Total Tests (2024)

22,000

Avg Mileage

21,733 mi

Est. Annual Cost

£1,582

Is the 2021 MINI COOPER S reliable?

Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the MINI brand average of 84%.

At 3 years old, 93% of MINI COOPER Ss from 2021 passed their MOT first time in 2024. That's based on 22,000 tests across the UK. The average mileage at this age is 21,733 miles.

How does the 2021 MINI COOPER S compare?

Rank among all 2021 cars1424th out of 3,373(top 42%)
Rank among all MINI models34th out of 341(top 10%)
vs national average+11% (82% avg)
vs 2021 cars average+1% (92% avg)
vs MINI average+9% (84% avg)

Mileage Analysis

The average 2021 MINI COOPER S has 21,733 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

Best year to buy a MINI COOPER S?

The most reliable year is the 2022 model with a 97% MOT pass rate, while the 2006 model has the lowest at 71%. The 2021 sits between the two at 93%.

How much does a 2021 MINI COOPER S cost to run?

⛽Fuel (Hybrid, 1499cc)
£1,137
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,582
Per month£132/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

MINI COOPER S by Year

YearPass RateTestsAvg Mileage
202297%1,30417,134 mi
202193%22,00021,733 mi
202093%21,81426,028 mi
201992%33,68231,800 mi
201892%19,93337,784 mi
201791%19,24045,465 mi
201690%18,70252,888 mi
201589%16,36361,373 mi
201488%11,31563,437 mi
201386%4,95068,666 mi
201285%2,45069,335 mi
201186%76074,478 mi
201079%59776,322 mi
200978%64175,827 mi
200879%62488,922 mi
200781%62387,543 mi
200671%44689,871 mi
200575%46492,109 mi
200476%35797,833 mi
200375%314103,971 mi
200277%94100,344 mi

Checking a specific MINI COOPER S?

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About the 2021 MINI COOPER S

The 2021 MINI COOPER S is a small family car with a 1499cc hybrid engine. 22,000 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 21,733 miles at 3 years old, MINI COOPER S owners drive about as much as the UK average.

2021 MINI COOPER S Fuel Costs

The 1499cc hybrid engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.

What does it cost to own a 2021 MINI COOPER S?

Total estimated annual running cost is £1,582 (£132/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

MINI COOPER S Reliability Trend

Newer MINI COOPER Ss show better MOT pass rates than older ones, with an average improvement of 13 percentage points.

Buying a Used 2021 MINI COOPER S

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. If you're flexible on year, the 2022 model has the highest pass rate at 97%. With 22,000 MOT tests in our data, there's strong statistical confidence in these figures.

Alternatives to the 2021 MINI COOPER S

If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable hybrid cars with similar engines: