What year Proton Persona Sei is most reliable?

Based on MOT first-test pass rates, the 1993 Proton Persona Sei has the highest pass rate at 68.3%, out of 100 vehicles tested.

What are the most common Proton Persona Sei MOT failures?

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

CarHunch

Get Started

Proton Persona Sei — Reliability by Year

2,354 vehicles · MOT data 1993–1997 · first-test pass rates

This page shows MOT first-test pass rates for each year the Proton Persona Sei 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

1993

68.3% pass rate · 100 vehicles

⚠

Lowest pass rate year

1995

62.5% pass rate · 582 vehicles

Year	Pass rate	Avg mileage	Vehicles
1997	66.8%	78,521 mi	250
1996	66.2%	76,567 mi	707
1995	62.5%	77,708 mi	582
1994	63.3%	83,722 mi	715
1993	68.3%	92,935 mi	100

Which year Proton Persona Sei is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.

Tests range from an average of 76,567 miles (newest year) to 92,935 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →

Trying to decide which year to buy?

We've done the full analysis — which years to look for, which to avoid, and where to find the best value for reliability on a Proton Persona Sei.

See the buying guide →

← All Proton models

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