Ty Gibbs is giving his grandfather plenty to think about. The 18-year-old grandson of championship car owner Joe Gibbs took the lead with 20 laps left at Charlotte Motor Speedway and held off the field for his second Xfinity Series win of his rookie season on Saturday. If the younger Gibbs keeps this up, Joe Gibbs might not be able to keep the hard-charging young driver out of the NASCAR Cup Series.