Grand Touring Over (GTO)[1] is the name of a former classification designated to grand touring competing in sports car racing, originally by IMSA in the IMSA GT Championship, and later by the SCCA in the revived United States Road Racing Championship, and Grand-Am in the Rolex Sports Cars Series. IMSA used the class between 1971 and 1991;[2] the SCCA used the class between 1998 and 1999, and Grand-Am used the class for a single season in 2000. The class had its origins in the original TO class used by the SCCA in the Trans-Am series, and was also similarly modeled to the FIA's Group 4 and Group 5 racing classes, but eventually evolved over time into its own category.[3] The class specified an engine displacement of more than 2.5 L (150 cu in), with engine design and number of cylinders being unrestricted. The original class became known as Grand Touring Supreme (GTS) in 1992.[4]
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Porsche 911 IMSA GTO -
Audi Quattro IMSA GTO -
Nissan 240SX IMSA GTO -
Ford Mustang Cobra IMSA GTO at Sebring in 1995
=References
- ^ https://alex62.typepad.com/imsablog/2006/01/do_you_want_to_.html
- ^ https://www.racingarchives.org/tag/imsa/
- ^ https://historicmotorsportcentral.com/2016/03/14/focus-the-imsa-gt-championship-story/
- ^ https://www.carthrottle.com/post/wb9bo9x/