Audi’s full-size luxury sedan continues to evolve as part of its fourth generation. A true executive car that can double as a personal limo, the A8 is also available in plug-in hybrid configuration enabling up to 29 kilometres of zero-emission driving. A 3.0-litre V6 engine takes over when you run out of electrons. The top-line S8 model takes performance to another level thanks to a turbocharged 4.0-litre V8 that puts out 563 horsepower.