Speedway Motorsports shares vision to revitalize North Wilkesboro Speedway for future NASCAR races | CBS Sports Headlines Speedway Motorsports shares vision to revitalize North Wilkesboro Speedway for future NASCAR races SMI CEO Marcus Smith believes there is a ‘real possibility’ of bringing at least the NASCAR Camping World Truck Series … Continue reading Speedway Motorsports shares vision to revitalize North Wilkesboro Speedway for future NASCAR races