Marco Andretti packs up his gear following practice for the Indianapolis 500 auto race at Indianapolis Motor Speedway in Indianapolis, Thursday, Aug. 13, 2020.
(AP Photo/Michael Conroy)INDIANAPOLIS The horsepower boost sent speeds skyrocketing over 233 mph early on Fast Friday at Indianapolis Motor Speedway.
The Andretti Autosport cars quickly jumped to the top of the board with Marco Andretti logging a lap of 233.491 miles per hour (375.77 kilometres per hour).
It's the fastest lap in a practice which is considered unofficial since Sebastien Bourdais went 233.116 mph in 2017.
The first thing you need is speed and then you need to put the four laps together," Andretti said.