The 2016 Buick Envision is available as a 4-door, 5-seat sport utility. Starting at $44,710, the 2016 Buick Envision II 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. The top of the line 2016BuickEnvisionI , priced at $ 42,070 , 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.