Major accident in NASCAR (photos, video)

Kenseth leads 86 laps before mechanical failure ends his day. Kevin Harvick and Tony Stewart are knocked out of the race by an eight-car crash on Lap 33.

Two of the pre-race favorites, Kevin Harvick and Tony Stewart, had their days ruined early when they were collected in an eight-car crash on Lap 33 of the 200-lap race.

Stewart is a three-time Sprint Cup Series champion, but he has never won the Daytona 500 and he finished 41st on Sunday. Harvick was 42nd.

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