Hamlin emerges victorious in caution-filled Coca-Cola 600

By Bob Pockrass
FOX Sports NASCAR Writer

CONCORD, N.C. — Denny Hamlin sat on the pole and won the Coca-Cola 600 at Charlotte Motor Speedway — but the start of the race and the end of the race Sunday was primarily the only time he looked like he had a winning car.

Hamlin won a 619.5-mile marathon — the longest race in NASCAR history in terms of miles thanks to two overtime restarts — by swapping the lead with Kyle Busch in the final…