ASTON MARTIN DBX V8 AUTO (2021)
Running costs, common problems, and reliability data based on 941 real MOT tests in 2024.
MOT Pass Rate
98%
Total Tests (2024)
941
Avg Mileage
21,769 mi
Est. Annual Cost
£2,037
Is the 2021 ASTON MARTIN DBX V8 AUTO reliable?
Excellent reliability. Very few MOT failures. That's 16 points above the national average of 82%. It also outperforms the ASTON MARTIN brand average of 94%.
At 3 years old, 98% of ASTON MARTIN DBX V8 AUTOs from 2021 passed their MOT first time in 2024. That's based on 941 tests across the UK. The average mileage at this age is 21,769 miles.
How does the 2021 ASTON MARTIN DBX V8 AUTO compare?
Mileage Analysis
The average 2021 ASTON MARTIN DBX V8 AUTO has 21,769 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 ASTON MARTIN DBX V8 AUTO?
The most reliable year is the 2022 model with a 100% MOT pass rate, while the 2020 model has the lowest at 98%. The 2021 sits between the two at 98%.
How much does a 2021 ASTON MARTIN DBX V8 AUTO cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
ASTON MARTIN DBX V8 AUTO by Year
Checking a specific ASTON MARTIN DBX V8 AUTO?
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About the 2021 ASTON MARTIN DBX V8 AUTO
The 2021 ASTON MARTIN DBX V8 AUTO is a luxury with a 3982cc petrol engine. 941 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 5% of all 2021 cars for reliability.
With an average of 21,769 miles at 3 years old, ASTON MARTIN DBX V8 AUTO owners drive about as much as the UK average.
2021 ASTON MARTIN DBX V8 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 ASTON MARTIN DBX V8 AUTO?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
ASTON MARTIN DBX V8 AUTO Reliability Trend
The ASTON MARTIN DBX V8 AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 ASTON MARTIN DBX V8 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. If you're flexible on year, the 2022 model has the highest pass rate at 100%.
Alternatives to the 2021 ASTON MARTIN DBX V8 AUTO
The ASTON MARTIN DBX V8 AUTO is actually the most reliable option among similar petrol luxurys from this era. Here are comparable petrol cars with similar engines:
- MERCEDES C (2019) 91% pass rate (-7%) from 52,838 tests
- PORSCHE CAYENNE (2019) 95% pass rate (-3%) from 9,063 tests
- PORSCHE 911 (2019) 97% pass rate (-1%) from 7,188 tests
- AUDI A6 (2020) 94% pass rate (-4%) from 3,470 tests