sentences:  After introducing the Ducati 1098 in 2007 powered by a 1,099 cc v-twin engine Ducati requested that Superbike rules be changed to allow v-twins of up to 1,200 cc compete against 1,000 cc four-cylinder bikes.Ducati argued that they no longer produced a road-going 1,000 cc V-twin superbike and that the level of tuning now needed to make their 999 competitive on the race track was too expensive.Ducati said they would quit if the rules were not changed, while Alstare Suzuki team boss Francis Batta also said that his team would quit if the new rules gave Ducati an unfair advantage.