PEUGEOT 508 GT LINE S/S PHEV AUTO (2020)
Running costs, reliability data, and common problems from 285 real MOT tests.
Annual Cost
£1,737
£145/month
MOT Pass Rate
88%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 12-25
1600cc Petrol
Solid Option
88% pass rate, £1737/year to run. 6 points above average.
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Annual Running Costs
~42 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 6 points above the national average of 82%. It also outperforms the PEUGEOT brand average of 83%.
At 6 years old, 88% of PEUGEOT 508 GT LINE S/S PHEV AUTOs from 2020 passed their MOT first time in 2026. That's based on 285 tests across the UK. The average mileage at this age is 39,467 miles.
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How Does It Compare?
Mileage Analysis
39,467
Average miles
44,400
Expected for age
The average 2020 PEUGEOT 508 GT LINE S/S PHEV AUTO has 39,467 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
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Similar Cars to Consider
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About the 2020 PEUGEOT 508 GT LINE S/S PHEV AUTO
The 2020 PEUGEOT 508 GT LINE S/S PHEV AUTO is a small family car with a 1600cc petrol engine. 285 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It sits in the bottom 82% of 2020 cars for MOT pass rates.
With an average of 39,467 miles at 6 years old, PEUGEOT 508 GT LINE S/S PHEV AUTO owners drive about as much as the UK average.
2020 PEUGEOT 508 GT LINE S/S PHEV AUTO Fuel Costs
The 1600cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 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 PEUGEOT 508 GT LINE S/S PHEV AUTO?
Total estimated annual running cost is £1,737 (£145/month), broken down as £1137 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2020 PEUGEOT 508 GT LINE S/S PHEV AUTO
At 6 years old, the PEUGEOT 508 GT LINE S/S PHEV AUTO 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
Based on the 2020 PEUGEOT 508 GT LINE S/S PHEV AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
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 PEUGEOT 508 GT LINE S/S PHEV AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| PEUGEOT 508 GT LINE S/S PHEV AUTO(2020) | 88% | £1137 | £195 | Grp 12-25 | £1737 |
| TOYOTA PRIUS(2019) | 94% | £1327 | £190 | Grp 18-32 | £1772+£35 |
| TOYOTA YARIS DESIGN HEV CVT(2021) | 96% | £1137 | £190 | Grp 12-25 | £1582-£155 |
| TOYOTA COROLLA ICON TECH HEV CVT(2021) | 94% | £1327 | £190 | Grp 18-32 | £1772+£35 |
| TOYOTA YARIS ICON HEV CVT(2021) | 95% | £1137 | £190 | Grp 12-25 | £1582-£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.
Related Peugeot Models
Explore other Peugeot cars or similar models in the same category.
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TOYOTA PRIUS
2019 · 1797cc Petrol
TOYOTA YARIS DESIGN HEV CVT
2021 · 1490cc Petrol
TOYOTA COROLLA ICON TECH HEV CVT
2021 · 1987cc Petrol
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