2007 Dodge Ram 2500 Mega Cab SLT 4x4 Diesel. If your looking for the biggest baddest diesel truck then check out this Dodge Ram 2500 MEGA CAB SLT with Four Wheel drive and a 5.9 liter 6 cylinder inline diesel engine! This truck is lifted with massive offroad tired and chrome wheels. Inside you get power locks windows and mirrors, power drivers seat, cruise control, AM/FM/CD with touch screen display, AC and a digital info display on the roof with temperature and compass, 4x4 has a high and low gearing, and Automatic transmission.