Audi RS Q8 Carbn BLK TFSI MHEV QT A (2020)

Estimated running costs and MOT pass rates from 291 MOT tests in 2024.

Annual Cost

£2,413

£201/month

MOT Pass Rate

92%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 35-50

3996cc Petrol

Great Choice

92% pass rate, £2,413/year to run. 10 points above average.

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Petrol3996cc6 years old291 tests33k miles avg

Annual Running Costs

Fuel (Petrol, 3996cc)

~30 mpg

£1,958

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,413

Per month£201/mo

Per week£46/wk

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

92% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 10 points above the average of 82% across all models in our data.

92% of MOT tests on Audi RS Q8 Carbn BLK TFSI MHEV QT As from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 291 tests across the UK, retests included. The average mileage recorded at those tests was 33,046 miles.

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How Does It Compare?

Rank among 2020 models1373rd of 2,554(bottom half)

Rank among Audi models543rd of 1,066(bottom half)

vs average of all models+10%(82% avg)

vs 2020 models average+0%(92% avg)

vs Audi average+2%(90% avg)

Mileage Analysis

33,046

Average miles

29,600

Expected for age

The average 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A had 33,046 miles on the clock at its 2024 MOT, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2021 model has the highest MOT pass rate at 98%, while the 2020 model has the lowest at 92%. Consider a different year if reliability is a priority. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Audi RS Q8 Carbn BLK TFSI MHEV QT A by Year

Year	Pass Rate	Tests	Avg Mileage
2021	98%	195	27,154 mi
2020	92%	291	33,046 mi

Similar Cars to Consider

Mercedes C

2019 · 3982cc Petrol

£2,413/year

91%

-1%

Porsche Cayenne

2019 · 3996cc Petrol

£2,413/year

95%

+3%

Porsche 911

2018 · 3996cc Petrol

£2,413/year

96%

+4%

Audi A6

2020 · 3996cc Petrol

£2,413/year

94%

+2%

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About the 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A

The 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A is a premium performance car. Our records list a 3996cc petrol engine, though engines vary between versions. 291 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2020, the average MOT pass rate is 92%, and this model matches that benchmark.

With an average of 33,046 miles recorded at its 2024 MOT tests, Audi RS Q8 Carbn BLK TFSI MHEV QT A owners drive about as much as the UK average.

2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A Fuel Costs

The 3996cc 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 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT 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 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A

At 6 years old, the Audi RS Q8 Carbn BLK TFSI MHEV QT 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.

Timing Chain / Belt

Watch out

At 6 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Low risk

Larger 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 risk

Always 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 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT 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
Audi RS Q8 Carbn BLK TFSI MHEV QT A(2020)	92%	£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(2018)	96%	£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 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A

Is the 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A reliable?

Excellent reliability. Very few MOT failures. 92% of MOT tests on 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT As ended in a pass, from 291 tests (DVSA MOT data for tests in 2024, retests included). That's 10 points above the average of 82% across all models in the same data.

How much does a 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT 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 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A?

92% of 291 MOT tests on the 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 1373rd of 2,554 models first registered in 2020 (bottom half).

Which year Audi RS Q8 Carbn BLK TFSI MHEV QT A has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Audi RS Q8 Carbn BLK TFSI MHEV QT A has the highest MOT pass rate at 98% and the 2020 the lowest at 92%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A?

The average mileage recorded at MOT tests on the 2020 Audi RS Q8 Carbn BLK TFSI MHEV QT A is 33,046 miles, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.