The 2020 Audi A4 allroad is available as a 4-door, 5-seat wagon. Starting at $44,600, the 2020 Audi A4 allroad 2.0T Premium is powered by a 2.0L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 31-mpg on the highway.