The 2017 Acura ILX is available as a 4-door, 5-seat sedan. Starting at $29,990, the 2017 Acura ILX Premium Package is powered by a 2.4L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 35-mpg on the highway. The top of the line 2017AcuraILXAcuraWatch Plus Package , priced at $ 29,290 , is powered by a 2.4L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 35-mpg on the highway.