Proton

Proton Sl Auto (1996)

151 real MOT outcomes analysed • 71.8% first-time pass rate

1996 Proton Sl Auto

CarHunch analysed 151 real MOT records for the 1996 Proton Sl Auto. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 1996 Proton SL Auto is a serious reliability concern, with just 24.7% passing MOT first time against the UK average of 80%—that's a three-to-one failure rate that puts it well below acceptable standards. Dangerous defects are relatively uncommon at 3.3%, but the sheer volume of standard failures makes this a risky buy.

These cars average around 63,500 miles, which is low for their age, yet they still accumulate 0.54 failures and 1.3 advisories per test, suggesting inherent mechanical weakness rather than wear-and-tear issues. Before purchasing, have a pre-purchase inspection done by a specialist familiar with Proton models, because this cohort's track record indicates you'll likely face recurring repair bills.

We have limited data for the 1996 Proton Sl Auto — treat the figures below as indicative rather than definitive.

First-time pass
71.8%
UK average ~80%
Below average
Dangerous (ever)
3.3%
At least once in MOT history
Check this vehicle
Avg failures / car
0.54
Over 2.4 tests on record
Moderate
Typical mileage
63k
Middle half: 46k–71k
For context

These stats describe 151 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 151 Proton Sl Auto cars.

UK

Before you buy a 1996 Proton Sl Auto

Based on MOT data from 151 vehicles — here's what to check.

  • 📋 Check the full MOT history. 3.3% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Mileage Distribution

Most 1996 Proton Sl Auto vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

62,508
typical
46,264
low mileage
70,903
high mileage

Half of all 1996 Proton Sl Auto vehicles fall between 46,264 and 70,903 miles.

Is the mileage you're seeing normal?
Under 46,264 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
46,264–70,903 miles — normal for age. This is where most 1996 Proton Sl Autos sit.
Over 95,719 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

2.4
Avg MOT tests per vehicle
0.54
Avg failures per vehicle
1.3
Avg advisories per vehicle
Other model years — Proton Sl Auto: All Sl Auto years → Which year to buy? →
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Buyer beware — pass it on