Why? Expensive cars have a lot more gadgets and thus more things can go wrong.
Also, several troublesome models from Audi, BMW, and Mercedes-Benz drag down the group.
If there are high-quality but troublesome cars at one end of the spectrum, several reliable but low-quality cars show up at the other end, most notably the Toyota Yaris.
It has been among the most reliable cars for years, but scores very low in road tests.
This highlights the need to look beyond a brand's perception, as each brand has winners, and losers, across the model spectrum.
Take a look at this graph to see which car segments offer the best reliability: