Should I check the MOT history before buying a 2006 Better Bt 125 20?

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 2006 Better Bt 125 20?

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 2006 Better Bt 125 20?

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 2006 Better Bt 125 20 reliable?

Based on MOT data from 347 vehicles, the 2006 Better Bt 125 20 has a first-time MOT pass rate of 70.4%, 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 2006 Better Bt 125 20?

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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Better Bt 125 20 (2006)

347 real MOT outcomes analysed • 70.4% first-time pass rate

2006 Better Bt 125 20

CarHunch analysed 347 real MOT records for the 2006 Better Bt 125 20. 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 Still on the Road MOT Averages Colour Breakdown Compare Models

Moderate sample. 347 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 2006 BETTER BT 125-20 is significantly less reliable than the UK average, with a first-time MOT pass rate of just 37.5% against the national benchmark of 80%—meaning nearly two-thirds of these vehicles fail their test. While the 9.8% dangerous defect rate is manageable, expect most examples to need work before passing.

These vehicles average just under 6,000 miles, which is remarkably low for a 18-year-old model and suggests many are lightly used or stored, though that hasn't translated to better reliability. The 0.81 failures and 1.7 advisories per vehicle indicate consistent mechanical issues rather than isolated problems, so budget for repairs and have any prospective purchase inspected by a mechanic familiar with this make before committing.

The 2006 Better Bt 125 20 has a below-average first-time pass rate (70.4% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ 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

70.4%

UK average ~80%

Below average

Dangerous (ever)

9.8%

At least once in MOT history

Check this vehicle

Avg failures / car

0.81

Over 2.9 tests on record

Moderate

Typical mileage

Middle half: 2k–7k

For context

⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.

🔧 Expect consumable spend. An average of 1.7 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 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 347 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.

Buyer beware — pass it on

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 347 Better Bt 125 20 cars.

Before you buy a 2006 Better Bt 125 20

Based on MOT data from 347 vehicles — here's what to check.

📋 Check the full MOT history. 9.8% 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 (100%)	346	70.3%	0.81

Colour Breakdown

Based on 516 Better Bt 125 20 vehicles registered in the UK — across all years. From DVLA registration records.

Black 50.4%

260

Red 39.9%

206

Blue 9.7%

Mileage Distribution

Most 2006 Better Bt 125 20 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.

4,480

typical

2,405

low mileage

7,372

high mileage

Half of all 2006 Better Bt 125 20 vehicles fall between 2,405 and 7,372 miles.

Is the mileage you're seeing normal?

✓ Under 2,405 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.

✓ 2,405–7,372 miles — normal for age. This is where most 2006 Better Bt 125 20s sit.

⚠ Over 9,952 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2006 Better Bt 125 20 — Still on the Road

Numbers are thinning — 27% of 2006 Better Bt 125 20s are still active.

Numbers are declining — 13 vehicles still getting MOTs in 2018 (27% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2018.

MOT History Averages

2.9

Avg MOT tests per vehicle

0.81

Avg failures per vehicle

1.7

Avg advisories per vehicle

Other model years — Better Bt 125 20: All Bt 125 20 years → Which year to buy? →

2005

Or browse all models: Better →

Compare with another model

See how the 2006 Better Bt 125 20 stacks up against a rival.

Buyer beware — pass it on