Toyota Yaris vs Ford Ka: Insurance Risk Comparison
Gera Risk Comparison Delta (GRCD): -25 pts — Ford Ka is riskier by 25 index points. MOT fail-rate difference: -17.8 pp. From 26,016,787 DVSA MOT tests (2016, OGL v3.0).
Which is riskier to insure — the Toyota Yaris or the Ford Ka?
The Ford Ka (GVRI 54/100) is 25 index points riskier than the Toyota Yaris (GVRI 29/100) according to the Gera Risk Comparison Delta — a 17.8 percentage-point difference in MOT fail rates from 2016 DVSA data. UK fleet average GVRI: 37/100. Source: DVSA Anonymised MOT data (2016), OGL v3.0.
Toyota Yaris vs Ford Ka: side-by-side risk data (2016)
| Measure | Toyota Yaris | Ford Ka | Difference (A − B) |
|---|---|---|---|
| Gera Vehicle Risk Index (GVRI) | 29/100 | 54/100 | -25 pts |
| Risk band | Low Risk | Moderate Risk | Ford Ka riskier |
| MOT fail rate | 20.2% | 38.0% | -17.8 pp |
| MOT tests in dataset | 363,893 | 304,663 | — |
| Failed tests | 73,649 | 115,873 | — |
| Avg defect severity | 1.03 | 1.04 | 1=std, 3=dangerous |
| vs UK fleet GVRI (37/100) | -8 pts below avg | +17 pts above avg | — |
GRCD = GVRI(A) − GVRI(B). GVRI = 0.6 × MOT_fail_rate + 0.4 × avg_defect_severity_norm, 0–100. Class-4 (car) normal tests only. N ≥ 30. Source: DVSA MOT 2016, OGL v3.0.
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Get insurance quotes for the Toyota Yaris — lower-risk by 25 GVRI points
The Toyota Yaris (GVRI 29/100) is 25 index points lower-risk than the Ford Ka from DVSA MOT data. GeraSure is building data-driven insurance comparison using real GVRI data. Join the waitlist to see what that means for your premium.
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Toyota Yaris vs Ford Ka insurance risk: frequently asked questions
- What is the Gera Risk Comparison Delta for the Toyota Yaris vs Ford Ka?
- The Gera Risk Comparison Delta (GRCD) for the Toyota Yaris vs Ford Ka is -25 index points, computed from GVRI(Toyota Yaris) = 29/100 and GVRI(Ford Ka) = 54/100. The Ford Ka is the higher-risk model by 25 GVRI points based on DVSA MOT 2016 data (OGL v3.0).
- What is the Toyota Yaris GVRI?
- The Toyota Yaris Gera Vehicle Risk Index (GVRI) is 29/100 (Low Risk), with a MOT fail rate of 20.2% from 363,893 class-4 DVSA MOT tests in 2016. The UK fleet average GVRI is 37/100.
- What is the Ford Ka GVRI?
- The Ford Ka Gera Vehicle Risk Index (GVRI) is 54/100 (Moderate Risk), with a MOT fail rate of 38.0% from 304,663 class-4 DVSA MOT tests in 2016. The UK fleet average GVRI is 37/100.
- Which is cheaper to insure, the Toyota Yaris or Ford Ka?
- Based on DVSA MOT data, the Toyota Yaris (GVRI 29/100, Low Risk) has a lower modelled insurance risk than the Ford Ka (GVRI 54/100) by 25 index points — a 17.8 percentage-point MOT fail-rate difference. However, actual premiums also depend on driver age, no-claims bonus, postcode, annual mileage and policy type.
- How is the GRCD calculated?
- GRCD = GVRI(Car A) − GVRI(Car B). GVRI = 0.6 × MOT_fail_rate + 0.4 × avg_defect_severity_norm, min-max scaled 0–100. All inputs are from the DVSA Anonymised MOT Test Results dataset (2016, OGL v3.0). Only make+model combinations with N ≥ 30 tests are included. Full methodology is on the Gera Risk Comparison Delta methodology page.
Methodology
The Gera Risk Comparison Delta for Toyota Yaris vs Ford Ka is the difference between their GVRI scores: GRCD = GVRI(Toyota Yaris) − GVRI(Ford Ka) = 29 − 54 = -25 pts. GVRI = 0.6 × MOT_fail_rate + 0.4 × avg_defect_severity_norm, min-max scaled 0–100, from DVSA Anonymised MOT Tests (class-4, 2016, OGL v3.0). Full formula and verification steps on the methodology page.
Contains public sector information published by Driver and Vehicle Standards Agency (DVSA) and licensed under the Open Government Licence v3.0. Source: DVSA Anonymised MOT Test Results — DfT (2016, published 2016).