A 19-year-old California native, Siegel was in the midst of a third lap during a simulated qualifying run when his No. 18 Dale Coyne Racing Honda snapped around and hit the outside wall on the exit of Turn 2.
After making contact with the wall, the back of the car lifted off the ground, getting almost inverted, and skated down the backstretch on its left side before coming to a stop in the middle of the track.
Nolan Siegel has been seen and released following this crash and blow over during #Indy500 practice.
— INDYCAR on NBC (@IndyCaronNBC) May 17, 2024
📺: Peacock pic.twitter.com/fZaP7mxuvJ
All cars are given an extra 100 horsepower via more turbo boost today, to allow cars to simulate the four-lap qualifying runs.
"I don't know [what happened] to be honest," said a bewildered Siegel after being checked and released from the infield care center. "I'll have to look at it closer.
"I had one snap of oversteer that I caught and then turned back in and spun, and I'm not exactly sure why."
The incident happened roughly 90 minutes into the day, with Siegel only running 15 laps with a best of 229.813mph (28th overall). He becomes the third driver to crash this week, with Chip Ganassi Racing rookie Linus Lundqvist and Andretti Global’s Marcus Ericsson, the 2022 Indy 500 winner, involved in separate incidents on Thursday’s running.