There are several ways to define an automotive sleeper. Some might say that they’re cars that tend to hide their performance behind unassuming aesthetics, while others might classify them as vehicles that can leave you standing at a light when you least expect them to. And when you’re looking to cite an example, a mid-eighties Audi 100 Avant Wagon could well be your choice. After all, this rather bland-looking, turbo five-cylinder vehicle is about as far away from a flashy sports car or a muscle-bound coupe as you can get, but it still combines stealth, practicality, and engineering talent in one impressive package.
