The 2018 Audi RS 7 is available as a 4-door, 4-seat hatchback. Starting at $113,900, the 2018 Audi RS 7 4.0T is powered by a 4.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 24-mpg on the highway. The top of the line 2018AudiRS 7performance , priced at $ 130,700 , is powered by a 4.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 24-mpg on the highway.