![Volvo Concept Truck](http://images.hgmsites.net/tmb/volvo-concept-truck_100593733_t.gif)
Because they cover significantly more mileage than the average passenger car, with much worse fuel economy, large commercial trucks are a major source of emissions. Last year, Volvo Trucks aimed to address this issue with a concept truck that demonstrated ways to improve fuel efficiency through aerodynamics and weight reduction. Volvo Trucks sells...