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Current Motorsport Status and History including Formula 1 (F1), World Endurance and GT (WEC, IMSA, Weathertech), IndyCar (NTT), and NASCAR (Monster Cup) racing. Please explore and enjoy your niche for speed.

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1989 IMSA GT Season

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1989 IMSA GT Season
Photo Credit: Attribution Unascertained.
Champion Constructor: None
Putative Constructor: Roush Mercury (US,0,4)
Champion Driver: Pete Halsmer (US,1,0)
Putative Driver: Hans-Joachim Stuck (DE,0,1)
Putative Constructor Entry Specification: Model Cougar XR-7, 3.79-liter, six-cylinder vee, cast iron/aluminum engine, OHV, fuel injection, turbocharged, five-speed, ventilated disc brakes, tubular space frame chassis, double wishbone independent suspension, 470 horsepower.

Roush Racing with its Mercury Cougar XR-7 entry (eight victories) fends off a sensational challenge from the new werks Audi 90 quattro (seven victories) in 1989 for its second consecutive IMSA GT putative constructors' title. Audi driver Hans-Joachim Stuck wins four consecutive GT events from mid-September through mid-October to steal the putative crown from IMSA nominal champion Pete Halsmer, who prevails after a narrow defeat to Scott Pruett on the prior season.

HeM applies the Putative Model to all racing seasons for two primary purposes: First, to effectively normalize all racing seasons for empirical comparison across the decades, and second, to step clear of series organizers which score season championships primarily out of commercial interest or to attract manufacturer participation. The Putative Model simply scores all seasons in the same fashion as a standard track and field meeting, with the only purpose of tracking what takes place at the finishing stripe If the Putative Champion differs from the nominal Series Champion, please note the (SC) notation below.

Roush Cougar/Capri184     Stuck HJ100
Audi158     Halsmer (SC)92
Cunningham Nissan54     Dallenbach W Jr.87
FTR Dodge Daytona11     Haywood50
Mandeville Mazda10     Rohrl45
RCT Capri9     Millen S37

Noteworthy 1989 Races

History-3: No Rows Returned for User Request.