The 2018 Cadillac XT5 is available as a 4-door, 5-seat sport utility. Starting at $40,595, the 2018 Cadillac XT5 Base FWD is powered by a 3.6L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway. The top of the line 2018CadillacXT5Platinum AWD , priced at $ 63,395 , is powered by a 3.6L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.