Chaos erupted deep into the final quarter of the Coca-Cola 600 on Sunday night after a massive multi-car crash brought out Caution No. 9 on Lap 330 at Charlotte Motor Speedway. The wreck exploded down the backstretch and into Turn 3 during the closing stages of NASCARâs longest race, immediately changing the complexion of one of the biggest events of the season. The incident involved several major names, including Ryan Preece, Josh Berry, Chas…