Dale Earnhardt Jr., driver of the #88 Nationwide Chevrolet, signs autographs for race fans during practice for the NASCAR Sprint Cup Series 5-Hour Energy 301 at New Hampshire Motor Speedway on July 18, 2015 in Loudon, New Hampshire. (Photo by Rainier Ehrhardt/Getty Images)
Dale Earnhardt Jr., driver of the #88 Nationwide Chevrolet, signs autographs for race fans during practice for the NASCAR Sprint Cup Series 5-Hour Energy 301 at New Hampshire Motor Speedway on July 18, 2015 in Loudon, New Hampshire. (Photo by Rainier Ehrhardt/Getty Images) Rainier Ehrhardt Getty Images
Dale Earnhardt Jr., driver of the #88 Nationwide Chevrolet, signs autographs for race fans during practice for the NASCAR Sprint Cup Series 5-Hour Energy 301 at New Hampshire Motor Speedway on July 18, 2015 in Loudon, New Hampshire. (Photo by Rainier Ehrhardt/Getty Images) Rainier Ehrhardt Getty Images

Dale Earnhardt Jr. on NASCAR safety: ‘It was trial and error’

July 18, 2015 12:54 PM

UPDATED July 18, 2015 11:46 PM

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