The Honda CX500 attracted attention for its advanced engine techniques and the Katana for its advanced and aggressive body styling, which broke from common traditional motorcycle styling. Although the Katana GSX1100S styling impressed the many thousands of viewers, almost everybody thought that it was just for show and the production model would be quite different. During the summer of 1981, Suzuki released the production Katana with almost exactly the same body styling seen at the Cologne show, with subtle improvements in the engine and running gear. The body styling is from the genius of Mr. Hans A. Muth of West Germany, who spent much time ensuring driver comfort in his design, and which proved out in many wind tunnel tests. The entire styling was derived from research on the best drivers position, and the rearward placed backsteps and unique tank styling were not done just for the pleasing jet age appearance. Large capacity fuel tank and small fairing were blended together for the best airflow around the rider and the bike. Although the bike is most noticable for its styling, every part in it is quality. Engine is an air-cooled, parallel 4 of 1075cc, using 16 valves. With the unique Suzuki TSCC (Twin Swirl Combustion Chamber) in the engine, it puts out 111 hp. This tremendous power transmits into a road speed of 230 k/h and its unique body styling deeps it stable even at these high speeds. Suzuki is shipping a 1000cc Katana GSX1000S tot he American market, and also a 750cc version to the European market as well. Requests from Japanese enthusiasts prompted Suzuki to also market a 750cc Katana GSX750S to their market.