Does the Toyota Prius fail the MOT on visibility more than it should?

The Toyota Prius records 5.01 visibility failure items per 100 initial MOT tests (2019–2024), against 7.12 expected for a car of the same age mix: less than expected for its class and age (−2.11, 95% interval −2.17 to −2.05). It ranks 546 of 746 models on visibility (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on visibility · check a Toyota Prius by registration

What exactly fails on visibility?

The most frequent DVSA defect wording in this group on the Toyota Prius is “Wiper blade missing or obviously not clearing the windscreen”, recorded 12,469 times in 2019–2024.

Toyota Prius: most frequent visibility defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Wiper blade missing or obviously not clearing the windscreen	12,469	1.48
Wiper blade defective	11,365	1.35
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view	8,465	1.01
Windscreen washers not working or not providing sufficient fluid to clear the windscreen	4,920	0.58
Obligatory mirror or device slightly damaged or loose	2,687	0.32

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 842,178 (initial tests) · Method: failure items (major and minor) grouped by DVSA's defect tree; wordings with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

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Does the Toyota Prius fail the MOT on visibility more than it should?

What exactly fails on visibility?

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