With an output of 47 metric horsepower (35 kW) at 6,500 rpm and top speed of 180 kilometres per hour (110 mph), it became Suzuki's flagship machine in 1968, and remains popular with collectors and café racers.[52][53][54][55] GT750 Le Mans with a straight-three engine was the first Japanese motorcycle with a liquid-cooled engine, earning it the moniker "Water Buffalo."[45][52] The Society of Automotive Engineers of Japan (in Japanese) includes the 1971 Suzuki GT750 as one of their 240 Landmarks of Japanese Automotive Technology.[56] TM400 Cyclone production motocrosser was designed to participate in 500cc class Motocross World Championship racing.