Bentley Eight
Reliability, running costs, and MOT data across 3 years from 220 real MOT tests.
Avg Pass Rate
86%
Total Tests
220
Best Year
1992 (100%)
Years Covered
3
How reliable is the Bentley Eight?
Bentley Eight by Year
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About the Bentley Eight
The Bentley Eight has been tested 220 times in 2024 MOT data across 3 model years (1990 to 1992), with an average pass rate of 86%. That's slightly above the national average of 82%. Available as petrol.
Best and Worst Years
The 1992 model is the most reliable with a 100% pass rate from 68 tests. The 1990 model has the lowest at 66%. With a 34 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Newer BENTLEY EIGHTs show better MOT pass rates than older ones, with an average improvement of 30 percentage points.
Mileage Across Years
The oldest model in our data (1990) averages 84,204 miles, while the newest (1992) averages 54,272 miles.
Compared to the Bentley brand average of 94%, the Eight is 8 points lower, placing it among the less reliable Bentley models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.