Audi's flagship luxury sedan soldiers on for another year, but make no mistake: the end is near. The base A8 features a turbocharged 3.0-litre V6 producing 335 horsepower. The S8, on the other hand, receives a twin-turbo 4.0-litre V8 that generates 563 horsepower. Both models benefit from a mild hybrid system. Interior fit and finish are remarkable, and space is quite generous thanks to the extended wheelbase that’s standard on all units sold in Canada.