Toyota Mark X late 1960s. Instead of being based on a modified Supra chassis "A" series platform, the Mark X continues to use the Toyota "X" platform, and does not share its platform with the Toyota "S" series platform used under the Toyota Crown and the Lexus GS. The continuation of describing this vehicle as the "X" series is a reference to the first dedicated Mark II platform introduced in 1972. Major changes to the Mark series are the engine and footwork. Toyota discontinued the straight-six engines used in the Toyota Verossa, which included the JZ series and the G series engines, and
Toyota Cresta suggest luxury overtones, such as Super Lucent, Super Touring, Super Deluxe, Super Custom, and Custom, names that were similarly used on the Crown. Upper level trim levels used two-tone paint schemes to further the Cresta's elevated status towards a younger demographic. The Nissan competitor was the Laurel. This new luxury approach was well received with buyers. In August 1983, Toyota chairman Eiji Toyoda initiated the F1 project ("Flagship" and "No. 1 vehicle"; alternatively called the "Circle-F" project), a clandestine effort aimed at producing a world-class luxury sedan for international markets. This led to the creation of an all new, full