What are the main MOT differences between Vauxhall Astra and Peugeot 308?

The Vauxhall Astra has a 33.2% overall MOT failure rate (2,990,503 tests) while the Peugeot 308 has 33.0% (596,073 tests). The top failure area for the Vauxhall Astra is lamps & electrics, while for the Peugeot 308 it is lamps & electrics.

Should I buy a Vauxhall Astra or Peugeot 308?

From an MOT reliability standpoint, the Peugeot 308 has a lower failure rate. However, MOT pass rates are just one factor — also consider insurance costs, fuel economy, running costs and personal preference. Use AutoSafe's free prediction tool to check a specific vehicle by registration.

Vauxhall Astra vs Peugeot 308 — MOT Failure Rate Comparison

Q: Which is more reliable, Vauxhall Astra or Peugeot 308?

Based on 3,586,576 MOT tests, the Peugeot 308 is more reliable with a 0.2 percentage point lower failure rate. The Vauxhall Astra has a 33.2% failure rate while the Peugeot 308 has 33.0%.

Vauxhall Astra

33.2%

failure rate from 2,990,503 tests

5.2pp above UK avg (28%)

Peugeot 308

33.0%

failure rate from 596,073 tests

5.0pp above UK avg (28%)

Verdict: The Peugeot 308 is more reliable based on MOT data, with a 0.2 percentage point lower failure rate than the Vauxhall Astra.

Failure Rate by Vehicle Age

How the Vauxhall Astra and Peugeot 308 compare across different age groups:

Age	Vauxhall Astra	Peugeot 308	Difference
0-2 years	10.9%	12.0%	Vauxhall Astra +1.1pp
3-5 years	15.2%	16.6%	Vauxhall Astra +1.4pp
6-10 years	28.0%	30.1%	Vauxhall Astra +2.1pp
11-15 years	41.1%	45.8%	Vauxhall Astra +4.7pp
15+ years	46.7%	54.0%	Vauxhall Astra +7.3pp

Component Risk Comparison

Side-by-side breakdown of which MOT failure areas each model is weaker in:

Vauxhall Astra Component Peugeot 308

6.6%

Lamps & Electrics

7.0%

6.2%

Suspension

5.2%

4.6%

Brakes

3.9%

3.7%

Tyres

3.8%

2.8%

Visibility

2.2%

Body & Chassis

2.8%

0.6%

Steering

1.5%

Component	Vauxhall Astra	Peugeot 308	Better
Lamps & Electrics	6.6%	7.0%	Vauxhall Astra
Suspension	6.2%	5.2%	Peugeot 308
Brakes	4.6%	3.9%	Peugeot 308
Tyres	3.7%	3.8%	Vauxhall Astra
Visibility	2.8%	2.2%	Peugeot 308
Body & Chassis	2.2%	2.8%	Vauxhall Astra
Steering	0.6%	1.5%	Vauxhall Astra

Which Is More Reliable: Vauxhall Astra or Peugeot 308?

Based on official DVSA MOT test records covering 3,586,576 tests between these two models, the Peugeot 308 comes out ahead with a 0.2 percentage point lower overall failure rate. The Peugeot 308 fails 33.0% of the time compared to the Vauxhall Astra's 33.2%.

However, the gap between these models varies by vehicle age. Younger examples of both models tend to have more similar pass rates, while differences can become more pronounced as vehicles age and accumulate wear. Component-level data shows each model has different weak spots — the Vauxhall Astra's top risk area is lamps & electrics while the Peugeot 308's is lamps & electrics. Knowing your model's specific weaknesses helps you target pre-MOT checks where they matter most.

Explore Each Model in Detail

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Data methodology: Failure rates are weighted averages across all mileage bands, calculated from official DVSA MOT test records. Only age/mileage combinations with 100+ tests are included. Component risks represent the probability of failure in each specific area. Data covers 142 million MOT tests across the UK. Comparisons are based on aggregate statistics and individual vehicle condition will vary.

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