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 Tercel changed to Toyota Vista Stores, as its badge engineered sibling, the Corolla II, was exclusive to Toyota Corolla Store locations. The Tercel was the first front-wheel-drive vehicle produced by Toyota, establishing a layout and frame that was later used in other popular Toyota models. For example, the Toyota Corolla E80's frame is similar to the AL20 Tercel's frame. Also, Toyota designed a new "A" engine for the Tercel, attempting simultaneously to achieve good fuel economy and performance and low emissions. Choice of body styles increased as well, with the addition of a four-door sedan. The name "Tercel" derives from the