BIKERELIABILITY Reg check
League table/ Piaggio Vespa GT 200/vs Lambretta LI150
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Piaggio Vespa GT 200 vs Lambretta LI150

The Lambretta LI150 passes its MOT first time more often than the Piaggio Vespa GT 200: 88.8% vs 83.1%, a 5.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Piaggio Vespa GT 200 Lambretta LI150
First-time pass rate 83.1% 88.8%
Outright fail rate 12.2% 5.9%
Vs comparable bikes (age & mileage adjusted) +12.0 pts +6.4 pts
Engine size 198cc 150cc
Rank among all models #2941 of 5428 #1332 of 5428
Median miles at test 16,845 2,944
MOT tests analysed 3,725 19,294
Most common failure tyres and wheels lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Piaggio Vespa GT 200 Lambretta LI150
Lights & signalling 3.8% 3.3%
Tyres & wheels 4.5% 0.9%
Brakes 3.2% 2.1%
Steering & suspension 3.0% 1.8%
Fuel & exhaust 2.4% 0.3%
Structure & body 0.9% 0.2%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Piaggio Vespa GT 200 Lambretta LI150
2018 86.7% 90.2%
2019 81.7% 92.6%
2020 86.9% 93.0%
2021 90.1% 94.3%
2022 81.9% 90.0%
2023 85.5% 90.8%
2024 90.2% 95.9%
2025 81.1% 97.1%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Piaggio Vespa GT 200 Lambretta LI150
0k-10k miles 86.0% 88.8%
10k-20k miles 85.2% 89.8%
20k-30k miles 81.0% 87.0%
30k-40k miles 77.5% 88.2%
40k-50k miles 79.2% 88.8%
50k-60k miles 77.2% 91.7%

Bands with fewer than 30 tests for either bike are left out.

Piaggio Vespa GT 200 vs Lambretta LI150 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Piaggio Vespa GT 200 or the Lambretta LI150?

The Lambretta LI150 passes its MOT first time more often than the Piaggio Vespa GT 200: 88.8% vs 83.1%, a 5.7-point lead. Adjusted for age, mileage and test class, the Piaggio Vespa GT 200 still comes out ahead: +12.0 points vs comparable bikes for the Piaggio Vespa GT 200, +6.4 for the Lambretta LI150. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Piaggio Vespa GT 200 fail its MOT on most?

Tyres & wheels: 4.5% of Piaggio Vespa GT 200 MOT tests failed on it, then lights & signalling (3.8%).

What does the Lambretta LI150 fail its MOT on most?

Lights & signalling: 3.3% of Lambretta LI150 MOT tests failed on it, then brakes (2.1%).

Which holds up better at high mileage, the Piaggio Vespa GT 200 or the Lambretta LI150?

At 50k-60k miles the Lambretta LI150 passes first time more often: 77.2% for the Piaggio Vespa GT 200 vs 91.7% for the Lambretta LI150.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.