Fiat

Fiat 500 Hey Google MHEV (2021)

238 real MOT outcomes analysed • 93.6% first-time pass rate

2021 Fiat 500 Hey Google MHEV

CarHunch analysed 238 real MOT records for the 2021 Fiat 500 Hey Google 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 HEY GOOGLE MHEV is significantly more reliable than the UK average, with a first-time MOT pass rate of 92.8% compared to 80% nationally—this is a genuinely strong result. Dangerous defects are rare, affecting only 6.3% of vehicles in the cohort, so safety concerns are minimal for buyers.

At a median mileage of 18,432 miles for vehicles now around three years old, these cars are running well within expected wear patterns, and the low average of 0.19 failures per vehicle confirms they're holding up. When advisories do appear, they average just 1.3 per car—minor items rather than structural problems—so budget for routine maintenance but don't expect major surprises; have a pre-purchase inspection focus on brake fluid condition and suspension geometry, the typical advisory triggers on small city cars.

We have limited data for the 2021 Fiat 500 Hey Google MHEV — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 20 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
93.6%
UK average ~80%
Better than average
Dangerous (ever)
6.3%
At least once in MOT history
Check this vehicle
Avg failures / car
0.19
Over 2.2 tests on record
Low
Typical mileage
18k
Middle half: 12k–26k
For context

These stats describe 238 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 238 Fiat 500 Hey Google MHEV cars.

UK

Before you buy a 2021 Fiat 500 Hey Google MHEV

Based on MOT data from 238 vehicles — here's what to check.

  • 📋 Check the full MOT history. 6.3% 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

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (97%) 232 93.6% 0.19

Colour Breakdown

Based on 390 Fiat 500 Hey Google MHEV vehicles registered in the UK — across all years. From DVLA registration records.

White 49%
191
Grey 31.5%
123
Black 19.5%
76

Mileage Distribution

Most 2021 Fiat 500 Hey Google 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.

18,432
typical
11,596
low mileage
25,834
high mileage

Half of all 2021 Fiat 500 Hey Google MHEV vehicles fall between 11,596 and 25,834 miles.

Is the mileage you're seeing normal?
Under 11,596 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.
11,596–25,834 miles — normal for age. This is where most 2021 Fiat 500 Hey Google MHEVs sit.
Over 34,875 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

2.2
Avg MOT tests per vehicle
0.19
Avg failures per vehicle
1.3
Avg advisories per vehicle
Other model years — Fiat 500 Hey Google MHEV: All 500 Hey Google MHEV years → Which year to buy? →
2022

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