IndyCar takes hybrid testing to its marquee venue in Indianapolis
The lessons learned about IndyCar's new hybrid cars could reverberate throughout next season. Four drivers, including reigning series champ Alex Palou, spent Thursday turning laps on the 2.5-mile Brickyard in race cars equipped with paddles or buttons used to store or deploy extra energy while cars are on the track. “It's certainly not fast,” 2016 Indianapolis 500 winner Alexander Rossi said.