The Toyota GZ engine is used as the powerplant for what  large four-door limousine produced mainly for the Japanese market?
Toyota Century The Toyota Century (Japanese: トヨタ・センチュリー) is a large four-door limousine produced mainly for the Japanese market, serving as Toyota's flagship car within Japan; whilst globally the unrelated Lexus LS series is Toyota's flagship luxury model outside Japan. Production of the Century began in 1967 and the model received only minor changes until a redesign in 1997. The Century derived its name from the 100th birthday of Sakichi Toyoda, the founder of Toyota Industries. The Century was available with only a V8 engine, the third Japanese built sedan post-war, at its introduction in 1967 until a major redesign in 1997, and is now only available with a Toyota built V12, an engine unique to the Century. Although the Century is a premium, full size luxury sedan, it is not available at Japanese Lexus dealerships; it can only be purchased at specifically identified "Toyota Store" locations. The logo used throughout is called the "Hō-ō 鳳凰" or "Fushichō" from Asian mythology, representing the Imperial House of Japan.
Daihatsu C-series engine The Daihatsu C-series engine is a range of compact three-cylinder, internal combustion piston engines, designed by Daihatsu, which is a subsidiary of Toyota. The engines range from 843 to 993 cc and have been manufactured in petrol and diesel-driven series. They have cast iron engine blocks and aluminum cylinder heads, and are of either SOHC or DOHC design, with belt driven heads. The engine first appeared in the all-new Daihatsu Charade in October 1977, in "CB20" form.