Audi has bitten the bullet and junked the internal combustion engine in one of its most popular models, transforming the A6 Sportback and Avant into purely electric models.
How do we know this? Well, the German marque has handily slapped 'e-tron' after the model designation, but it has also decided that all of its odd-numbered models (A3, A5, A7 etc) will be the ones sporting the dirty tailpipes from now on.
