In the meantime, Castiglioni obtained from the North American financier Oliver Curme, a general partner with Battery Ventures, who owned the Norton brand, license for production of a new generation of Norton motorcycles (designed by Tamburini) in Italy. However the deal wasn't approved by GEVI S.p.A. which proceed with another deal and sold Husqvarna to BMW in July 2007. Being disappointed by these decisions Claudio found a new opportunity for MV Agusta: on July 11, 2008, Harley-Davidson announced they had signed a definitive agreement to acquire the MV Agusta Group for 109 million US dollars (about 70 million euros), completing the acquisition on August 8, 2008. Claudio Castiglioni remained its president. Harley-Davidson invested 40 million euros into debts pay-off, production upgrade and the new model launches — a completely new three-cylinder F3 designed by the Ezio Mascheroni (who developed also Cagiva GP500 in the past). However due to its own problems Harley-Davidson decided to sell MV Agusta in October 2009. here Claudio was lucky again. On August 6, 2010 the new MV Agusta company, financially healthy and seriously refreshed, was bought by Castiglioni family for just 1 euro. Financial input of Proton and Harley-Davidson was enough to present the next generation of the extreme F4 sports bike with the new Corsa Corta engine with a capacity of 998 cc and 201 hp at EICMA 2010. It was the first new four-cylinder engine MV Agusta since 2005. At the same time, the Brutale naked line was updated, getting new model names 990 R (998 cc, 139 hp) and 1090 R (1078 cc, 142 hp). As a result, sales were increased for 50% in Q1 2010 and by the end of the year they achieved 3650 units.