The most reliable cars of 2017
Every 2017 car tested in Britain in one year, ranked by how often it failed. Measured, not surveyed.
Best
| # | Car | Engine | Failure rate | Tests |
|---|---|---|---|---|
| 1 | Lexus RX | 3.5 Hybrid | 4% | 2,001 |
| 2 | Porsche Macan | 3.6 Petrol | 4% | 543 |
| 3 | Bentley Continental GT | 4.0 Petrol | 4% | 508 |
| 4 | Porsche 911 | 3.0 Petrol | 5% | 1,469 |
| 5 | Porsche Boxster | 2.0 Petrol | 5% | 612 |
| 6 | Porsche Cayman | 2.0 Petrol | 5% | 510 |
| 7 | Fiat Auto Trail | 2.3 Diesel | 5% | 1,386 |
| 8 | Aston Martin DB11 | 5.2 Petrol | 5% | 729 |
| 9 | Fiat Swift | 2.3 Diesel | 5% | 1,624 |
| 10 | Peugeot Elddis | 2.0 Diesel | 5% | 554 |
| 11 | Lexus NX | 2.5 Hybrid | 5% | 3,973 |
| 12 | Mazda MX-5 | 2.0 Petrol | 6% | 3,090 |
| 13 | Porsche Macan | 3.0 Petrol | 6% | 2,013 |
| 14 | Skoda Kodiaq | 2.0 Petrol | 6% | 656 |
| 15 | Audi A8 | 3.0 Diesel | 6% | 606 |
| 16 | Land Rover Range Rover Evoque | 2.0 Petrol | 6% | 718 |
| 17 | Honda Jazz | 1.3 Petrol | 6% | 19,141 |
| 18 | Toyota Prius | 1.8 Hybrid | 6% | 15,942 |
| 19 | Porsche Macan | 3.0 Diesel | 6% | 2,691 |
| 20 | Lexus CT | 1.8 Hybrid | 6% | 3,178 |
| 21 | Honda CR-V | 2.0 Petrol | 6% | 5,467 |
| 22 | Suzuki Vitara | 1.4 Petrol | 6% | 2,059 |
| 23 | BMW 3 Series | 3.0 Petrol | 7% | 670 |
| 24 | Honda HR-V | 1.5 Petrol | 7% | 4,015 |
| 25 | Peugeot Partner | 1.2 Petrol | 7% | 1,350 |
Worst
| # | Car | Engine | Failure rate | Tests |
|---|---|---|---|---|
| 1 | Nissan Elgrand | 3.5 Petrol | 27% | 741 |
| 2 | Nissan Micra | 1.5 Diesel | 25% | 1,458 |
| 3 | Renault Kangoo | 1.5 Diesel | 24% | 3,057 |
| 4 | Fiat Doblo | 1.2 Diesel | 24% | 1,502 |
| 5 | Vauxhall Combo | 1.6 Diesel | 24% | 1,263 |
| 6 | Renault ZOE | Electric | 24% | 1,352 |
| 7 | Peugeot Bipper | 1.2 Diesel | 23% | 1,788 |
| 8 | SsangYong Rexton | 2.2 Diesel | 23% | 569 |
| 9 | Fiat Talento | 1.6 Diesel | 23% | 783 |
| 10 | Vauxhall Combo | 1.2 Diesel | 23% | 3,513 |
| 11 | Renault Trafic | 1.6 Diesel | 23% | 11,772 |
| 12 | Citroen Nemo | 1.2 Diesel | 22% | 629 |
| 13 | SsangYong Rodius | 2.2 Diesel | 22% | 795 |
| 14 | Fiat Fiorino | 1.2 Diesel | 22% | 532 |
| 15 | Nissan NV200 | 1.5 Diesel | 22% | 1,913 |
| 16 | Vauxhall Vivaro | 1.6 Diesel | 22% | 15,743 |
| 17 | Seat Arona | 1.0 Petrol | 21% | 769 |
| 18 | Renault Clio | 1.5 Diesel | 21% | 7,304 |
| 19 | Fiat Doblo | 1.6 Diesel | 21% | 1,334 |
| 20 | Seat Ibiza | 1.0 Petrol | 21% | 10,653 |
| 21 | Peugeot Partner | 1.6 Diesel | 21% | 16,089 |
| 22 | Fiat Tipo | 1.2 Diesel | 21% | 735 |
| 23 | Mercedes-Benz Citan | 1.5 Diesel | 20% | 4,144 |
| 24 | Nissan Navara | 2.3 Diesel | 20% | 11,178 |
| 25 | Vauxhall Insignia | 1.4 Petrol | 20% | 695 |
What this measures
Britain tests every car over three years old against a published standard and publishes the result. This is that record for the 2017 model year, so every car here is the same age and none is flattered by being newer.
A car driven less fails less. An expensive one often sits high for reasons that are not about how well it was built, which is why the app can rank these at the same odometer reading.