You probably know the joke that Detroit cars aren’t built to turn corners. That’s because the nearest bendy bits are an ...

It's called the GT50 concept, and it's a tribute to the all-conquering Audi racecars of the eighties and nineties.

See the fastest Audi cars ever built, ranked by real top speed. R8s, RS models, and the quickest Audi SUV make the list.