BROOKLYN, Mich. — Austin Dillon posted the fastest lap in Friday’s final practice session at Michigan International Speedway.
Brandon Jones spun and made slight contact with the wall during the session, which saw a group of about a dozen cars run together at one point. Allgaier also spun but continued on without hitting anything.
Kyle Busch posted the fastest lap in the first of two Xfinity practices Friday at Michigan International Speedway.
Busch ran a lap of 175.584 mph.
The session marked the first time Xfinity cars ran at Michigan with the aero package and restrictor plates used at Indianapolis last year and Pocono last weekend. The session saw cars draft and some run together at times.