The 2016 Cadillac CTS is available as a 4-door, 5-seat sedan. Starting at $45,560, the 2016 Cadillac CTS 2.0L Turbo Standard RWD is powered by a 2.0L , 4 -cylinder engine that returns an EPA estimated 21-mpg in the city and 31-mpg on the highway. The top of the line 2016CadillacCTS3.6L Premium Collection AWD , priced at $ 64,685 , is powered by a 3.6L , 6 - cylinder engine that returns an EPA estimated 19-mpg in the city and 28-mpg on the highway.