NASCAR Cup Series

Results: First Kentucky Speedway Sprint Cup practice cut short by rain

Published Jul. 10, 2015 11:19 a.m. ET

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Jared Turner

After two days of persistent rain washed out testing, Sprint Cup Series drivers finally got on track at 10:30 a.m. ET Friday at Kentucky Speedway.

The practice marked the first opportunity drivers have had to shake down the new Sprint Cup aero package debuting this weekend at the 1.5-mile track.

The package, designed to create more opportunities for passing, includes a 3.5-inch rear spoiler and a 25-inch wide splitter extension panel with 1.75 inches less overhang on the splitter, which collectively reduces aerodynamic downforce.

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NASCAR Cup Series