Towing at 140 MPH. You’ll have to see it to believe it.

Tuning a GMC Sierra 2500HD diesel truck to attain 140 mph takes serious know-how, but what about 140+ mph while towing a big brick of a Kalispell travel trailer? The crazy minds at Diesel Power, in partnership with Carson Trailer and Pacific Performance Engineering, have set a new Guinness World Record for land speed while [...]