 The Ferrari 333 SP and the R&S cars (Oldsmobile / Ford) were the dominant entries in the series from 1995 until the demise of IMSA at the end of 1998.In 1996, Slater sold the organization to Roberto Muller (ex-CEO of Reebok) and Wall Street financier Andy Evans, who was also an IndyCar owner, and owner-driver of the Scandia WSC team.Evans and VP of marketing Kurtis Eide were responsible for the name change to Professional Sports Car Racing.