MERCEDES AMG GT BLACK SERIES AUTO (2021)
Running costs, common problems, and reliability data based on 30 real MOT tests in 2024.
MOT Pass Rate
73%
Total Tests (2024)
30
Avg Mileage
2,940 mi
Est. Annual Cost
£2,337
Is the 2021 MERCEDES AMG GT BLACK SERIES AUTO reliable?
Average reliability. Expect some repairs as it ages. That's 9 points below the national average of 82%. It falls below the MERCEDES brand average of 87%.
At 3 years old, 73% of MERCEDES AMG GT BLACK SERIES AUTOs from 2021 passed their MOT first time in 2024. That's based on 30 tests across the UK. The average mileage at this age is 2,940 miles.
How does the 2021 MERCEDES AMG GT BLACK SERIES AUTO compare?
Mileage Analysis
The average 2021 MERCEDES AMG GT BLACK SERIES AUTO has 2,940 miles on the clock, which is significantly below the expected 22,200 miles for a 3-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
How much does a 2021 MERCEDES AMG GT BLACK SERIES AUTO cost to run?
Higher than average due to low pass rate
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
Checking a specific MERCEDES AMG GT BLACK SERIES AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES AMG GT BLACK SERIES AUTO
The 2021 MERCEDES AMG GT BLACK SERIES AUTO is a performance with a 3982cc petrol engine. 30 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 100% of 2021 cars for MOT pass rates.
With an average of 2,940 miles at 3 years old, MERCEDES AMG GT BLACK SERIES AUTO owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2021 MERCEDES AMG GT BLACK SERIES AUTO Fuel Costs
The 3982cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 MERCEDES AMG GT BLACK SERIES AUTO?
Total estimated annual running cost is £2,337 (£195/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 73% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 MERCEDES AMG GT BLACK SERIES AUTO
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. Note: with only 30 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 MERCEDES AMG GT BLACK SERIES AUTO
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES C (2019) 91% pass rate (+18%) from 52,838 tests
- PORSCHE CAYENNE (2019) 95% pass rate (+22%) from 9,063 tests
- PORSCHE 911 (2019) 97% pass rate (+24%) from 7,188 tests
- AUDI A6 (2020) 94% pass rate (+21%) from 3,470 tests