All makes

Proton reliability and common MOT problems by model

Proton shows a 31.1% combined MOT failure rate across 1,037 tests in Motintel data. Savvy has one of the lower high-confidence rates at 31.1%. Savvy deserves extra checking at 31.1%.

Data sources: DVSA MOT records, official recall records, and MOT fault wording snapshots (2026-04-27, 2026-04-29, rfr_codes_2025-05-12, failure items 2023). Search-indexed model pages must clear 20,000 MOT tests and 10,000 vehicles.

Most reliable Proton models in MOT data

#	Model	MOT failure rate	Tests	Vehicles
Not enough high-confidence model reports are available yet.

Proton models with the highest MOT failure rates

#	Model	MOT failure rate	Tests	Vehicles
Not enough high-confidence model reports are available yet.

Common Proton MOT problem areas

#	Problem area	MOT notes	Models affected	What to check	High-rate examples
Not enough high-confidence problem-area data is available yet.

All Proton model reports

Model	MOT tests	Vehicles	Failure rate
Savvy limited data	1,037	736	31.1%

Models with limited data (fewer than 20,000 tests or 10,000 vehicles) have full reports but are not indexed in search engines until the evidence threshold is met.