While Audi gave its A6 sedan some new and updated features last year, both stylistically and in terms of features, its rivals have been completely overhauled to stay at the head of the pack.

If you think aerodynamics are only important for supercars, it might surprise you that the Audi A6 Sportback e-tron – rather than one of the brand's sports cars – is the most aerodynamic Audi ...

It’ll use the latest-generation A6 design and structure and will be Audi Sport-ified; a more aggressive face, blistered arches, huge wheels and much more besides. The only design differences?