What year Alfa Romeo 33 is most reliable?

Based on MOT first-test pass rates, the 1993 Alfa Romeo 33 has the highest pass rate at 67.8%, out of 104 vehicles tested.

What are the most common Alfa Romeo 33 MOT failures?

The most common Alfa Romeo 33 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Alfa Romeo 33 — Reliability by Year

482 vehicles · MOT data 1990–1993 · first-test pass rates

This page shows MOT first-test pass rates for each year the Alfa Romeo 33 was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

1993

67.8% pass rate · 104 vehicles

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Lowest pass rate year

1991

61.2% pass rate · 146 vehicles

Year	Pass rate	Avg mileage	Vehicles
1993	67.8%	97,189 mi	104
1992	63.9%	80,556 mi	109
1991	61.2%	79,568 mi	146
1990	63.8%	86,000 mi	123

Which year Alfa Romeo 33 is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests. Green = noticeably above average for this model; red = noticeably below average.

Tests range from an average of 79,568 miles (newest year) to 97,189 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 Alfa Romeo 33.

See the buying guide →

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