Mack Trucks brought a wide assortment of its products -- from highway tractors and refuse vehicles to engines and transmissions -- to the 2012 Mid America Trucking Show, including the infamous "Megatron" tractor used in the movie Transformers 3: Dark Side of the Moon. For those not familiar with this cinematic extravaganza, "Megatron" is one of the "bad guys" in the film; the leader of the nefarious "Decepticons," evil robots that are bent on destroying humanity and taking over the Earth.

Freightliner, along with its brother division Detroit, brought a wide variety of other products to the 2012 Mid America Trucking Show along with its concept vehicle -- including engines, axles, and its Argosy cabover tractor, sold only in Australia and South Africa. The trucks were also all given what the company called a "modernized version" of a retro 1970s orange and white paint scheme for the show.

Peterbilt Motors Co. brought a special "technology truck" to the 2012 Mid America Trucking Show to get the opinion of drivers, owner-operators, and fleet executives alike for a range of Class 8 tractor enhancements -- including everything from new aerodynamic fairings to digital gauges and a redesigned sleeper berth compartment.

Kenworth's Mark Brown took FleetOwner on a special "ride along" test drive for its new T-680 tractor during the 2012 Mid America Trucking Show -- describing a wide variety of design changes, from the exterior's aerodynamic shape to interior improvements to its dashboard layout, just to name a few.

Along with its brand new Model 579 highway tractor, Peterbilt Motors Co. brought several other of its platforms to the 2012 Mid America Trucking Show -- including a CNG-powered dump truck.

At the 2012 Mid America Trucking Show, Volvo put a wide variety of its commercial vehicle models on display -- including natural gas powered units, a dump truck, and a VN tractor equipped with the company's fuel sipping XE13 package.