Ever wondered why most American semi trucks look different compared to their European brethren? American truckers prefer the large long-nose cabin behind the engine whereas European trucks feature the cab over the engine. American long-nose semis offer bigger cabin space and this is the main reason why they rule American highways and by-ways.

The longer wheelbase of the American semi is said to improve ride and comfort. The European cab over-engine semi offers better visibility and is more maneuverable.

The other differences are governed by regulations. Cab-over-engine semi-trucks did not really take off in America. However, Optimus Prime continues to carry the torch for cab-over-engine semi-trucks because one day they could make a revolutionary comeback.

But to what end? A semi-truck reckoning is coming, the Tesla Semi could be a game changing event horizon. Optimus and the Autobots have a new autonomous enemy to contend with.