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Smart Roadster Speedsilver Auto (2004)

128 real MOT outcomes analysed • 75.5% first-time pass rate

2004 Smart Roadster Speedsilver Auto

CarHunch analysed 128 real MOT records for the 2004 Smart Roadster Speedsilver 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 2004 SMART ROADSTER SPEEDSILVER AUTO falls below the UK average pass rate at 74.9% versus 80%, which is a meaningful gap—but the real concern is that 35.2% of these cars have suffered dangerous defects, well above the typical threshold. This is a reliability red flag that should weigh heavily in your purchase decision.

At 53,447 miles average and 50,495 miles median, these Roadsters are reasonably low-mileage for their age, yet they're still generating 4.19 failures and 21.6 advisories per vehicle on average, suggesting the model has genuine wear-and-tear vulnerabilities. Before committing to one, get a pre-purchase inspection that specifically covers suspension, braking, and electrical systems—the clusters most likely to trip the dangerous defect rating.

We have limited data for the 2004 Smart Roadster Speedsilver Auto — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 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
75.5%
UK average ~80%
Around average
Dangerous (ever)
35.2%
At least once in MOT history
Check this vehicle
Avg failures / car
4.19
Over 16.8 tests on record
High
Typical mileage
50k
Middle half: 38k–66k
For context

These stats describe 128 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.

Watch for defects — worth knowing

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 128 Smart Roadster Speedsilver Auto cars.

UK

Before you buy a 2004 Smart Roadster Speedsilver Auto

Based on MOT data from 128 vehicles — here's what to check.

  • 📋 Check the full MOT history. 35.2% 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 (98%) 125 75.5% 4.26

Mileage Distribution

Most 2004 Smart Roadster Speedsilver 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.

50,495
typical
38,254
low mileage
65,981
high mileage

Half of all 2004 Smart Roadster Speedsilver Auto vehicles fall between 38,254 and 65,981 miles.

Is the mileage you're seeing normal?
Under 38,254 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.
38,254–65,981 miles — normal for age. This is where most 2004 Smart Roadster Speedsilver Autos sit.
Over 89,074 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Smart Roadster Speedsilver Auto — Still on the Road

Numbers are thinning — 38% of 2004 Smart Roadster Speedsilver Autos are still active.

Numbers are declining — 39 vehicles still getting MOTs in 2025 (38% of peak).

103 39 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

16.8
Avg MOT tests per vehicle
4.19
Avg failures per vehicle
21.6
Avg advisories per vehicle
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Compare with another model

See how the 2004 Smart Roadster Speedsilver Auto stacks up against a rival.

Watch for defects — worth knowing