Mg Gs
Reliability, running costs, and MOT data across 4 years from 5,205 real MOT tests.
Avg Pass Rate
84%
Total Tests
5,205
Best Year
2018 (85%)
Years Covered
4
About the Mg Gs
The Mg Gs has been tested 5,205 times in 2026 MOT data across 4 model years (2016 to 2019), with an average pass rate of 84%. That's slightly above the national average of 82%. Available as petrol.
Best and Worst Years
The 2018 model is the most reliable with a 85% pass rate from 1,644 tests. The 2017 model has the lowest at 83%. With just a 2 point spread, the Gs is consistently reliable regardless of year.
Reliability Trend
The MG GS has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Mileage Across Years
The oldest model in our data (2016) averages 57,578 miles, while the newest (2019) averages 37,544 miles.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2019 detailsHow reliable is the Mg Gs?
Mg Gs by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
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