The pic suggests a very coupe-style rear for the brand's flagship model, currently in its third generation.
Audi is promising Level 3 autonomous driving, where the car can drive by itself in traffic at up to 50km/h, and deal with some parking by itself.
There will be a little extra room inside, thanks to a slightly longer wheelbase, and powertrains will include V6, V8 and W12 engines, all incorporating 'mild hybrid' motor-generators.
