The 2018 Acura TLX is available as a 4-door, 5-seat sedan. Starting at $33,000, the 2018 Acura TLX 2.4L (DCT) FWD Sedan is powered by a 2.4L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 33-mpg on the highway. The top of the line 2018AcuraTLXAdvance Pkg AWD SH-AWD Sedan , priced at $ 45,750 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 30-mpg on the highway.