Editing IMSA (section)

====New ownership====
In 1987, John Bishop had to undergo a [[heart bypass surgery]], forcing him to rethink his priorities. He began to realise that the Camel GT series was in danger of becoming oriented toward the factory-backed teams and less to the privateers as Bishop originally intended. Rules were modified to accommodate the factory teams, which wanted to get into the series, despite Bishop's belief that such changes would be unfavorable to the series in the long run, especially if they failed to meet their objectives.<ref name="prototypes, p14"/>

In January 1989, the Bishops sold the company to Mike Cone and Jeff Parker, owners of the [[Honda Grand Prix of St. Petersburg#IMSA .28fairgrounds.29|IMSA Grand Prix of St. Petersburg]].<ref name="prototypes, p14"/> Bishop shortly stepped down as the organisation's president in favor of Mark Raffauf, his deputy president and the organisation's representative on the ACCUS (Automobile Competition Committee for the United States), an FIA recognised sporting body.<ref name="Endurance"/> Cone and Parker in turn sold the organization to businessman Charles Slater by the early 1990s.<ref name="tampa 20dec96">{{cite web|url=http://www.bizjournals.com/tampabay/stories/1997/01/20/daily2.html|title=IMSA wheels some of its people to NY, Indy dmyauthor=|date=January 20, 1997|work=Tampa Bay Business Journal|access-date=2008-01-21|archive-url=https://web.archive.org/web/20101209060018/http://www.bizjournals.com/tampabay/stories/1997/01/20/daily2.html|archive-date=2010-12-09|url-status=live}}</ref>

In 1996 Slater sold the organization with previously accumulated debt to Roberto Muller (ex-CEO of [[Reebok]]) and [[Wall Street]] based [[portfolio manager]] for [[Bill Gates]], [[Andy Evans (racing driver)|Andy Evans]], who also was an IndyCar owner and owner/driver of the [[Team Scandia|Scandia]] World Sports Car team. These changes would lead to the departure of many of the executive board members.<ref name="tampa 20dec96"/> Evans was responsible for the name change to '''Professional Sports Car Racing''' (PSCR).<ref name="Smotherman">{{cite web|url=http://www.cs.clemson.edu/~mark/racing.html#imsa|title=Selected Sports Car Racing History:1997 shakeup in US|access-date=21 January 2008|last=Smotherman|first=Mark|date=24 June 2007|archive-url=https://web.archive.org/web/20081013114645/http://www.cs.clemson.edu/~mark/racing.html#imsa|archive-date=2008-10-13|url-status=live}}</ref>

In 1998 the [[United States Road Racing Championship]] was revived as an alternative to Professional Sports Car Racing, involving the [[Sports Car Club of America]] and headed by a group of competitors and ex-IMSA personnel, including John Bishop, [[Bill France Jr.]], [[Rob Dyson]], [[Roger Penske]], [[Skip Barber]], and Ralph Sanchez. They wanted to keep rules within the United States.  When this initially failed, as a result [[Don Panoz]] and Barber departed to affiliate themselves with PSCR.<ref name="Smotherman"/>