The 2021 RAM 2500 is available as a 2-door, 3-seat regular side. Starting at $34,695, the 2021 RAM 2500 Tradesman 4x2 Regular Cab HD is powered by a 6.4L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2021 RAM 2500 Limited 4x4 Mega Cab HD, priced at $66,735, is powered by a 6.4L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated