The MK9 concept introduced a new naming convention for Lincoln, using letter and number combinations.

The naming system is similar to that of Mercedes-Benz or BMW, without referencing a vehicle's engine size.

The Mark X concept model featured a convertible panoramic glass roof.

The Mark X's official press release described the interior as dressed in Lime Sorbet with white Corian accents, polished aluminum, dark chrome, natural grain leather seating surfaces, plush sheepskin flooring and tailored tone-on-tone stitching throughout.

The Mark X was 185" long, and featured 21" chrome alloy wheels, and 3.9 L V8 with 280 hp (209 kW).