SEBRING, Fla. — A trio of Historic Sportscar Racing feature races kicked-off the competition schedule Thursday at Sebring Int’l Raceway for the HSR Sebring Historics and this weekend’s seventh running of HSR Classic Sebring 12 Hour, Pistons and Props, presented by the Alan Jay Automotive Network. Continuing his incredible reign over the competition at Sebring was Todd Treffert, who scored a pair of convincing feature race wins in his Speedconcepts 1974 No. Endurance Challenge race and then closed out the day’s schedule with a dominant win in the HSR Classic RS Cup race. Endurance Challenge victories at Sebring the last few years. The Classic RS Cup win Thursday was also his fourth victory at the Sebring Historics in the all-Porsche series for 1970’s era 911 RS/RSR and IROC models. 57 Porsche 914/6 prepared by the 901 Shop and – for the second-straight year at the Sebring Historics – an overall sixth-place finish.

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