The Italian-Argentine manager, in order to challenge the Japanese manufacturers, immediately asks the designers to copy a Honda CB500 Four engine to save time and money. Thus was born the 500 Quattro (1974) which will be the basis of the 750 Sei with its six-cylinder engine in line, first in the world on a road motorcycle. Experts in the field judged the 750 Sei an easy-to-ride motorcycles, with good engine elasticity, exceptional roadholding and excellent brakes. The only downside was the ignition that had to bring the power at the right time to the candles. In 1974 it became "Moto dell'anno" and in 1975 there were the first deliveries. It had a top speed of 200 km/h, 75 hp at 9500 rpm and was produced in 3200 units until 1977. This industrial policy, combined with little investment in plant and research, with a quality of materials that is not up to the competition, with a lack of distribution and after-sales network, will soon prove to be harmful. Then, the final blow, will be caused by the merger with the acerrima and historical rival (in racing) Moto Guzzi in the Guzzi-Benelli Moto (G.B.M. S.p.a.) that will transform the Benelli in an empty box. Benelli motorcycles from the 1970s and 1980s, particularly the 750 Sei, often command higher prices than their contemporaries on the secondhand market. The management of Andrea Merloni After a failed attempt of rebirth in 1989 supported by the Pesaro industrialist Giancarlo Selci, operating in the field of woodworking machinery and ex machine operator in the Benelli factory, in December 1995 there was the decisive turning point: the young Andrea Merloni, at only 28 years old, scion of family of the famous Marche dynasty of household appliances and passionate motorcyclist, has decided to take over the Benelli brand to relaunch it on the world market, first by opening a new factory in Strada della Fornace Vecchia, where Benelli itself is still based today, then entered the most difficult sectors, using young and dynamic designers, launching a series of scooters and maximoto to give immediate oxygen to the crates and organize the sales network and assistance. So, in just over a year from the acquisition, were placed on the market the first new products such as models Adiva (in the displacement 125 and 150) equipped with rigid canopy foldable in the trunk (first scooter in the world to be equipped