Tesla plans to begin mass production of its all-electric Class 8 Semi truck by the end of the year at its factory in Nevada.

Perhaps more importantly, automatic transmissions have increased fuel economy in many modern semi-trucks, making them a legit bottom-line difference maker for the owners of trucking outfits.

From cab design to road regulations, here are 15 key reasons these trucks are built for their unique environments.

Elon Musk has expressed reservations about the second-generation Tesla Semi, which is scheduled to start production by the ...

Fast and powerful heavy-lift modern semi truck with a full size trailer at the turn of mountain scenic interstate highway 15, blurred motion, western USA, California.