The s4r testastretta is the latest update on ducati's highly successful monster line of naked sportsters. depending on who you asked about its appearance, it's either
Ducati monster s4r testastretta - specifications: engine type l-twin cylinder, 4 valve per cylinder desmodromic, liquid cooled
Ducati Monster S4r
2004 Ducati Monster S4R - a two wheeled Shelby Cobra on heat!
Ducati introduces the new Monster S4Rs powered by the Testastretta