GMC Sierra 2500 HD 4x4. SLE Reg.Cab. A Heavy duty 6.6L Duramax truck with Great Power that has no problems pulling a Trailer in any climate, in the snow, on the beach, it doesn't matter, carries dirt/mulch and recreational toys. The ride is great, seats are comfortable, the fuel economy is good, Any serious driver that needs a truck w/towing capacity, look at this Sierra. The heavy-duty Sierra makes a strong case for itself against the competition