http://philadelphia.cbslocal.com/2013/02/23/fans-injured-when-car-sails-into-fence-at-daytona/ Fans Injured When Car Sails Into Fence At Daytona « CBS Philly
[...] The crash began as the field approached the checkered flag and leader Regan Smith attempted to block Brad Keselowski to preserve the win. That triggered a chain reaction, and rookie Kyle Larson hit the cars in front of him and went airborne into the fence (View photos). [...]