Proton Gl (1991)

5,230 real MOT outcomes analysed • 3.3% first-time pass rate

1991 Proton Gl

CarHunch analysed 5,230 real MOT records for the 1991 Proton Gl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 76.7% below UK average
3.3%
pass MOT first time
UK average: ~80%
80,920
typical mileage
60,372–104,566 middle half
0.4%
ever had a dangerous defect
recorded at any MOT
0.07
avg MOT failures per car
over 1.1 tests on record

What to check before buying a 1991 Proton Gl

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Proton Gl

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (100%) 5,229 3.3% 0.07
Diesel (0%) 1 0% 0

Mileage Distribution

Most 1991 Proton Gl vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

60,372
low mileage
80,920
typical
104,566
high mileage

Half of all 1991 Proton Gl vehicles fall between 60,372 and 104,566 miles.

MOT History Averages

1.1
Avg MOT tests per vehicle
0.07
Avg failures per vehicle
0.1
Avg advisories per vehicle

Most Common MOT Issues — 1991 Proton Gl

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 16%
    Offside Front Tyre worn close to the legal limit
  • 16%
    Nearside Front Tyre tread depth below requirements of 1.6mm
  • 14.6%
    Nearside Front Tyre worn close to the legal limit
  • 13.3%
    Exhaust emissions carbon monoxide content excessive
  • 13.3%
    Offside Front Tyre tread depth below requirements of 1.6mm
  • 11.6%
    Nearside Front constant velocity joint gaiter split
  • 11.2%
    Offside Front constant velocity joint gaiter split
  • 10.2%
    Nearside Rear Tyre worn close to the legal limit

Data covers a 3-year window centred on 1991. Counts include advisories and failures.

Found a specific Proton Gl?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Proton Gl:

1989 1990 1992 1993 1994 1995 1996