Audi is completing its quartet of visionary vehicles and will be at IAA 2019 to showcase an electric off-roader for the future of road transport: the Audi AI:TRAIL quattro, a comprehensive concept for sustainable mobility off the beaten track. All four visionary use case vehicles-the Audi Aicon, AI:ME, AI:RACE and AI:TRAIL will be on show together at Audi's stand in Hall 3 throughout the whole of IAA 2019. The four-seater Audi AI:TRAIL quattro combines the capacity...