Lincoln Blackwood Concept, 1999. The 2001 series production Blackwood prototype was a cross between the Ford F-150 Crew Cab and a Lincoln Navigator. It was a sales disaster and was withdrawn from the showrooms after just a year.
Source: https://carsthatnevermadeitetc.tumblr.com/post/616948074386997248/lincoln-blackwood-concept-1999-a-prototype-for