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The Mitsubishi Colt Galant GTO (Gran Turismo Omologato) was first shown as the Galant GTX-1 showcar at the 1969 Tokyo Motor Show. Sales began in November 1970, when it was the flagship hardtop variant of Mitsubishi Heavy Industries's then-new Colt Galant sedan. The nameplate was revived in 1990 for the Mitsubishi GTO, although this name was only used in the Japanese domestic market. ==History== The Colt Galant GTO exterior was penned by Hiroaki Kamisago, who had previously been sent by Mitsubishi to study at the Art Center College of Design, then located in Los Angeles, California, incorporating a number of stylistic cues from contemporary American muscle cars like the Mustang, Firebird and Cougar, including a long hood, raised cut-off ducktail rear, and rounded quad-headlamps and tail-lamps. The GTO was Mitsubishi's second production car to have full, roll down, side windows and a pillarless design and after the Toyota T40 series Corona of 1966 and Mitsubishi's own Galant Hardtop launched earlier in 1970; the GTO was the third such Japanese car. Mitsubishi Racing Development (AKA Colt Speed) intended for the Colt Galant GTO to compete in the prestigious JCCA Grand Prix circuit. However, the OPEC oil embargo of 1973 sounded the demise of GP racing, so the GTO race program was mothballed. Nevertheless, GTO's were successful in rallying, including the famous Japanese Alpine Rally. Initially, there were three Colt Galant GTO (A53C) models offered, all powered by the ''Saturn'' engine: the ''M1'' (1600 cc SOHC, 4-speed), ''M2'' (1600 cc SOHC, 4-speed) and the top-spec ''MR'' (1600 cc twin-carb, DOHC five-speed), a version only available in Japan. In February 1972 Mitsubishi upgraded the power plants, replacing the lower powered versions with a somewhat larger (1.85 litre) version of the Astron engine. These cars received the A55C chassis code, while the twin-cam MR continued to use the smaller but more powerful engine until January 1973, when stricter emissions standards made it obsolete. The higher-end versions now received Mitsubishi's all new Astron engines, with either . The range now consisted of the ''SL'' (2000 cc single-carb, four- or five-speed manual or automatic transmission), ''GS-5'' (2000 cc twin-carb, 5-speed manual) and ''GSR'' (2000 cc twin-carb, five-speed manual). The lowest priced 1700 SL model remained with the 1.7, with .〔''Automobile Guide Book 1973/1974'', p. 101〕 The lineup was also given a mild facelift to signal the changes, comprising a one-piece slats-type grille with a central dividing molding and three-piece tail lights. Additionally, the more sporting GSR had wider 185-section tires, flared guards and a black-painted rear panel between the lights. By〔 There were some minor adjustments to safety equipment in October 1973, and the automatic transmissions were dropped in August 1974. This was followed by a second styling tweak in February 1975 when the car gained a honeycomb-style front grille, enough to be labelled the "New Galant GTO" in promotional material. Two-litre GTOs built after this date also gained the ''Astron 80'' engine with Mitsubishi's ''Silent Shaft'' system, while the four-speed manual transmission was now only available with the smallest engine. In October 1975 the engines were updated with Mitsubishi's MCA emissions control system with an exhaust gas recirculation valve and a thermal reactor, all to pass the upcoming 1976 emissions standards. The four-speed transmission was discontinued entirely at this time, leaving only five-speed manuals. Power was now for the 1700 SL-5 and for the 2000 SL-5.〔''Automobile Guide Book 1976/1977'', p. 129〕 The GSR was briefly unavailable after the late 1975 change, but was revived with a cleaner MCA-80 engine in February 1976, with power now down to . Three months later the entire range received some minor exterior modifications, with the GSR receiving a new, large front air dam with a mirrored "GSR" script.〔''Automobile Guide Book 1976/1977'', p. 86〕 After a relatively long production run, the GTO was finally replaced by Galant Lambda/Sapporo in December 1976, although production continued into 1977.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mitsubishi Galant GTO」の詳細全文を読む スポンサード リンク
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