The 2003 Toyota Tacoma is available as a 2-door, 3-seat regular side. Starting at $12,200, the 2003 Toyota Tacoma Base (M5) 4x2 Regular Cab is powered by a 2.4L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 27-mpg on the highway. The top of the line 2003ToyotaTacomaV6 (A4) 4x4 Xtracab , priced at $ 20,720 , is powered by a 3.4L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 19-mpg on the highway.