Volvo trucks are the most preferred heavy duty truck builders, which has made them to the second largest brand in the world. Most of the trucks they build, almost 95 per cent weigh over 16 tons, falling in the heavy weight category. While Volvo also offers other services and products, trucks remain a core part of their product range. The Volvo VNL64T780 is a heavy duty semi trailer truck. This truck is also available for the 2011 year model. It is powered by a diesel Cummins ISX engine, paired with a 13 speed and I-shift transmission to generate 300 horsepower.