ASTON MARTIN VANTAGE V8 ROADSTER AUTO (2020)
Running costs, reliability data, and common problems from 47 real MOT tests.
Annual Cost
£2,192
£183/month
MOT Pass Rate
89%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
3982cc Petrol
Solid Option
89% pass rate, £2192/year to run. 7 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%. It falls below the ASTON MARTIN brand average of 94%.
At 6 years old, 89% of ASTON MARTIN VANTAGE V8 ROADSTER AUTOs from 2020 passed their MOT first time in 2026. That's based on 47 tests across the UK. The average mileage at this age is 15,152 miles.
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How Does It Compare?
Mileage Analysis
15,152
Average miles
44,400
Expected for age
The average 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO has 15,152 miles on the clock, which is significantly below the expected 44,400 miles for a 6-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
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ASTON MARTIN VANTAGE V8 ROADSTER AUTO by Year
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About the 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO
The 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO is a luxury with a 3982cc petrol engine. 47 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 80% of 2020 cars for MOT pass rates.
With an average of 15,152 miles at 6 years old, ASTON MARTIN VANTAGE V8 ROADSTER 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.
2020 ASTON MARTIN VANTAGE V8 ROADSTER 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 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO?
Total estimated annual running cost is £2,192 (£183/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO
At 6 years old, the ASTON MARTIN VANTAGE V8 ROADSTER AUTO offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 47 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 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 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 2020 ASTON MARTIN VANTAGE V8 ROADSTER AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| ASTON MARTIN VANTAGE V8 ROADSTER AUTO(2020) | 89% | £1592 | £195 | Grp 35-50 | £2192 |
| MERCEDES C(2019) | 91% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE CAYENNE(2019) | 95% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE 911(2018) | 96% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| AUDI A6(2020) | 94% | £1592 | £190 | Grp 35-50 | £2037-£155 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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