By Andrew McCarty Next weekend NASCAR is putting on its annual throwback celebration at Darlington Raceway. Popular driver Kurt Busch is one of the drivers in the field and will be rocking a unique paint job for the race. He’s be driving in the NASCAR Cup Series Goodyear 400 at Darlington next Sunday in a McDonald’s-themed car. The design honors Bill Elliott, who used that paint scheme in 1996. “100% the best throwback of the season,” one fan said. “Yea I’m definitely gonna need this diecast,” another fan said. Some fans have been waiting a very long time for this throwback. “I’ve been waiting…