Should I check the MOT history before buying a 2021 Fiat 500 Lounge MHEV?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 Fiat 500 Lounge MHEV?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 Fiat 500 Lounge MHEV?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 Fiat 500 Lounge MHEV reliable?

Based on MOT data from 3,394 vehicles, the 2021 Fiat 500 Lounge MHEV has a first-time MOT pass rate of 92.2%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2021 Fiat 500 Lounge MHEV?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Fiat 500 Lounge MHEV (2021)

3,394 real MOT outcomes analysed • 92.2% first-time pass rate

2021 Fiat 500 Lounge MHEV

CarHunch analysed 3,394 real MOT records for the 2021 Fiat 500 Lounge MHEV. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Colour Breakdown Compare Models

The 2021 FIAT 500 Lounge MHEV is a notably reliable first-time MOT performer, passing at 91.2% against the UK average of 80%—a 11-point margin that puts it in the top tier. The dangerous defect rate of 9.9% is reassuringly low, so structural and safety issues are uncommon in this cohort.

At 20,256 miles median, these cars are still relatively young and lightly used, which explains the low failure count of 0.25 per vehicle on average. The 1.3 advisories per car suggest minor wear items (tyres, wipers, trim) rather than systemic problems, so budget for routine servicing but don't expect surprise repairs; when shopping, prioritise full service history and check tyre condition yourself to avoid the most common advisory flags.

The 2021 Fiat 500 Lounge MHEV passes its MOT first time more often than most UK vehicles (92.2% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ About 1 in 12 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

92.2%

UK average ~80%

Better than average

Dangerous (ever)

9.9%

At least once in MOT history

Check this vehicle

Avg failures / car

0.25

Over 2.4 tests on record

Low

Typical mileage

20k

Middle half: 13k–30k

For context

✅ Good baseline reliability. A 92.2% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 3,394 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 3,394 Fiat 500 Lounge MHEV cars.

Before you buy a 2021 Fiat 500 Lounge MHEV

Based on MOT data from 3,394 vehicles — here's what to check.

📋 Check the full MOT history. 9.9% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (98%)	3,315	92.3%	0.25
Hybrid Electric (Clean) (2%)	54	84.9%	0.5

Colour Breakdown

Based on 6,900 Fiat 500 Lounge MHEV vehicles registered in the UK — across all years. From DVLA registration records.

Grey 34.8%

2,402

White 17.3%

1,192

Red 15.1%

1,040

Black 10.6%

729

Blue 9.7%

672

Green 8.3%

572

Pink 4.1%

281

Purple 0.1%

Maroon 0.1%

Mileage Distribution

Most 2021 Fiat 500 Lounge MHEV 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.

20,256

typical

13,407

low mileage

29,944

high mileage

Half of all 2021 Fiat 500 Lounge MHEV vehicles fall between 13,407 and 29,944 miles.

Is the mileage you're seeing normal?

✓ Under 13,407 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.

✓ 13,407–29,944 miles — normal for age. This is where most 2021 Fiat 500 Lounge MHEVs sit.

⚠ Over 40,424 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

0.25

Avg failures per vehicle

1.3

Avg advisories per vehicle

Other model years — Fiat 500 Lounge MHEV: All 500 Lounge MHEV years → Which year to buy? →

2020

Or browse all models: Fiat →

Compare with another model

See how the 2021 Fiat 500 Lounge MHEV stacks up against a rival.

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