The 2018 Buick Envision is available as a 4-door, 5-seat sport utility. Starting at $33,995, the 2018 Buick Envision Base FWD is powered by a 2.5L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 29-mpg on the highway. The top of the line 2018BuickEnvisionPremium II AWD , priced at $ 44,960 , is powered by a 2.0L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 26-mpg on the highway.