The Mazda Heritage Collection made its second appearance with Historic SportsCar Racing last weekend at Sebring International Raceway. The 1989 Mazda 767B (above) and 1991 Mazda RX-7 GTO (below) were a hit on and off the racetrack, even adding to their racing records by taking a few race wins.
IndyCar s Hybrid Assist Unit has met some difficult challenges during testing and on December 7, IndyCar announced it will not be deployed until after the 108th Indy 500.
Since the initial on-track testing of hybrid components over a year ago, development of the new NTT INDYCAR SERIES 2.2-liter twin-turbocharged V-6 engine with hybrid technology has passed many significant milestones.
IndyCar delays official launch of hybrid to after Indy 500 motorsport.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from motorsport.com Daily Mail and Mail on Sunday newspapers.
The season-ending Historic Sportscar Racing B.R.M. Chronographes Endurance Challenge, Sasco Sports International/American Challenge and Classic RS Cup races came to a competitive conclusion Friday at the HSR Sebring Historics at Sebring International Raceway.