The 2012 RAM 2500 is available as a 2-door, 3-seat regular side. Starting at $29,220, the 2012 RAM 2500 ST 4x2 Regular Cab HD is powered by a 5.7L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2012 RAM 2500 Laramie Longhorn/Limited Edition 4x4 Mega Cab HD, priced at $51,335, is powered by a 5.7L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated