The 2012 Acura TSX is available as a 4-door, 5-seat sedan. Starting at $30,010, the 2012 Acura TSX 2.4 (A5) Sedan is powered by a 2.4L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 31-mpg on the highway. The top of the line 2012AcuraTSXw/Technology Package Sport Wagon , priced at $ 35,010 , is powered by a 2.4L , 4 - cylinder engine that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway.