there's a somewhat popular secondary theory that the original Optimus Prime toy's alternate mode was actually inspired by the ...

Peterbilt 379 tractor unit is a multi-prize-winning show truck with an extended hood design and a 63” sleeper pod ...

While Optimus Prime opens the film in the form of a rusted out 1973 Marmon cab-over truck, the autobot leader eventually takes the form of an awesome 2015 Western Star 5700-based semi. We'll see ...