Audi had an instant hit on its hands when it decided to take on the Volvo XC60 and BMW X3 with the first Q5 in 2008. Which is why even with fresh engines and a thoroughly revamped platform, the new ...

You might be surprised to learn that the midsize Q5 crossover is Audi's best-selling vehicle—about five times better last year than the A5 from which it sprang, and easily outselling the A4, as well.

It’s no secret that Volkswagen and Audi struggled with reliability in the early 2000s, but now it appears that the issues have stuck around for a while. The 2.0-liter, turbocharged four-cylinder ...