The leader of the Transformers' Autobots is definitely based on a flat-faced cab-over-engine semi-truck. Exactly which one, though, remains a matter of dispute.

Optimus Prime is one of the most popular and highly rated buildable models in the Lego Icons lineup--for good reason, too.

The Lego Optimus Prime is comprised of 1,508 pieces and stands 13.5 inches tall in robot form. Thankfully, it’s the original 1980s depiction rather than the needlessly complex version from the ...

Optimus Prime's red, white and blue color scheme matched the truck stop's and Optimus Prime is a truck, making it a serendipitous fit.

Hasbro and Robosen have launched a companion trailer for Optimus Prime with equally cool auto-conversion features and an equally steep $750 price.

Fortnite concept art renders Optimus Prime into the game Optimus Prime is a truck. All Transformers have a vehicle that they can transform into to blend in to this world.

The Optimus Prime truck will be located near the festival fairground’s Wells Fargo arena (the open air, covered arena that’s located next to the cattle barns).

This authentic Optimus Prime stunt truck will likely transform into big dollars at Barrett-Jackson.

Save the world from the inevitable robot invasion by investing in Optimus Prime. The massive fire-emblazoned semi from "Transformers" is going up for auction.

Lego Optimus Prime Transforms From Robot to Truck, No Rebuild Required Transformers fans, roll out! Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.