CONCORD, N.C. - NASCAR on Saturday confiscated the No. 66 and No. 70 Chevrolets of Haas-CNC Racing after finding illegal rear wing mounts on both cars during inspection before practice for the Coca-Cola 600.
Both cars were loaded onto flatbed wreckers and driven off the Lowe's Motor Speedway property and taken to NASCAR's nearby research and development center for further inspection.
The No. 66, driven by Scott Riggs, qualified 13th Thursday night. The No. 70, which was to have lined up 43rd in Sunday's race, is driven by Johnny Sauter.
Both teams were allowed to roll out backup cars to be used on Sunday. They will have to start the race from the rear of the field.
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In the past, similar violations have resulted in 100-point penalties and fines upwards of $100,000. No decision on penalties are expected until early next week.