Mercedes AMG C 63 S Night Ed Prem + A (2021)
Estimated running costs and MOT pass rates from 384 MOT tests in 2024.
Annual Cost
£2,413
£201/month
MOT Pass Rate
93%
Excellent
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 35-50
3982cc Petrol
Great Choice
93% pass rate, £2,413/year to run. 11 points above average.
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Annual Running Costs
~30 mpg
Standard rate (from April 2017)
Low estimate due to excellent reliability
Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 11 points above the average of 82% across all models in our data. It also outperforms the Mercedes brand average of 87%.
93% of MOT tests on Mercedes AMG C 63 S Night Ed Prem + As from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 384 tests across the UK, retests included. The average mileage recorded at those tests was 17,817 miles.
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How Does It Compare?
Mileage Analysis
17,817
Average miles
22,200
Expected for age
The average 2021 Mercedes AMG C 63 S Night Ed Prem + A had 17,817 miles on the clock at its 2024 MOT, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
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About the 2021 Mercedes AMG C 63 S Night Ed Prem + A
The 2021 Mercedes AMG C 63 S Night Ed Prem + A is a premium performance car. Our records list a 3982cc petrol engine, though engines vary between versions. 384 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 17,817 miles recorded at its 2024 MOT tests, Mercedes AMG C 63 S Night Ed Prem + A owners drive about as much as the UK average.
2021 Mercedes AMG C 63 S Night Ed Prem + A 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 £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).
What does it cost to own a 2021 Mercedes AMG C 63 S Night Ed Prem + A?
Total estimated annual running cost is £2,413 (£201/month), broken down as £1,958 fuel, £200 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.
Buying a Used 2021 Mercedes AMG C 63 S Night Ed Prem + A
At 5 years old, the Mercedes AMG C 63 S Night Ed Prem + A offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 Mercedes AMG C 63 S Night Ed Prem + A stacks up against similar cars for estimated annual running costs, insurance group, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Est. Ins. Group | Total/yr |
|---|---|---|---|---|---|
| Mercedes AMG C 63 S Night Ed Prem + A(2021) | 93% | £1,958 | £200 | Grp 35-50 | £2,413 |
| Mercedes C(2019) | 91% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Porsche Cayenne(2019) | 95% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Porsche 911(2019) | 97% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Audi A6(2020) | 94% | £1,958 | £200 | Grp 35-50 | £2,413same |
Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.
Questions about the 2021 Mercedes AMG C 63 S Night Ed Prem + A
Is the 2021 Mercedes AMG C 63 S Night Ed Prem + A reliable?
Excellent reliability. Very few MOT failures. 93% of MOT tests on 2021 Mercedes AMG C 63 S Night Ed Prem + As ended in a pass, from 384 tests (DVSA MOT data for tests in 2024, retests included). That's 11 points above the average of 82% across all models in the same data.
How much does a 2021 Mercedes AMG C 63 S Night Ed Prem + A cost to run?
Our estimate is £2,413 a year (£201 a month): £1,958 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2021 Mercedes AMG C 63 S Night Ed Prem + A?
93% of 384 MOT tests on the 2021 Mercedes AMG C 63 S Night Ed Prem + A ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 1604th of 3,336 models first registered in 2021 (top half).
What is the average mileage for a 2021 Mercedes AMG C 63 S Night Ed Prem + A?
The average mileage recorded at MOT tests on the 2021 Mercedes AMG C 63 S Night Ed Prem + A is 17,817 miles, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
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