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
Luxury vehicle ES and LaCrosse emphasize "comfortable, reasonably priced luxury", while the TL has recently been targeted at the entry-level luxury sport market due to its SH-AWD. Recently, the entry-level luxury has been very competitive, and there has been price-overlapping with well-equipped non-luxury cars. The bestselling vehicles of the marque are frequently compact executive cars, such as the BMW 3 Series that makes up 40% of the vehicles that BMW sells worldwide. The mid-size luxury segment is commonly referred to as executive cars in Britain, "Obere Mittelklasse" in German, and "Grandes Routières" in French. Examples of models in this category include Acura