In March 1990, Pruett was seriously injured in a preseason testing crash at West Palm Beach, Florida, an IMSA street course.
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He was one of few drivers in the field familiar with the Detroit street circuit (previously a Formula One course), and had won the SCCA Trans-Am Motor City 100 (a support race for the Formula One event) in 1987.
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Concurrent with their primary CART effort, Truesports ventured into IMSA racing on several occasions in the mid-1980s.
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Later, Ferrari built their own Indycar chassis, the Ferrari 637, and Truesports seemed poised to become the first team to compete with it.