What year Proton Gl Extra is most reliable?

Based on MOT first-test pass rates, the 1991 Proton Gl Extra has the highest pass rate at 91.7%, out of 228 vehicles tested.

What are the most common Proton Gl Extra MOT failures?

The most common Proton Gl Extra MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

CarHunch

Get Started

Proton Gl Extra — Reliability by Year

673 vehicles · MOT data 1990–1991 · first-test pass rates

This page shows MOT first-test pass rates for each year the Proton Gl Extra was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

✓

Best pass rate year

1991

91.7% pass rate · 228 vehicles

⚠

Lowest pass rate year

1990

77.8% pass rate · 445 vehicles

Year	Pass rate	Avg mileage	Vehicles
1991	91.7%	93,656 mi	228
1990	77.8%	77,984 mi	445

← All Proton models

Check any UK registration — free MOT history and risk insights.