The 2008 Toyota Tundra is available as a 2-door, 3-seat regular side. Starting at $22,390, the 2008 Toyota Tundra V6 (A5) 4x2 Regular Cab is powered by a 4.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 19-mpg on the highway. The top of the line 2008ToyotaTundraSR5 5.7L (A6) 4x2 Double Cab Long Bed , priced at $ 28,540 , is powered by a 5.7L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 18-mpg on the highway.