The Lightning was based on the F-150's body-on-frame construction, while the Fathom was designed from the ground up as an EV made of three large parts.
They're both electric trucks made by Ford in the U.S., but that's one of the few things the new Ford Fathom and retired Ford F-150 Lightning have in common. The Fathom is not a direct replacement for⌠[+1354 chars]