Carrozzeria Ghia
The engine was based on the four-cylinder Honda CB500, but with two extra cylinders. The cylinder head fins of the Sei were squared off to provide a cosmetic individuality, but otherwise the engine is in most respects obviously derived from the Honda. The "angular, bold design" was by Carrozzeria Ghia. It produced at 9,000 rpm, had a top speed of around and was one of the smoothest European tourers.