Kyle Larson's car goes up into the fence during a wreck in the last lap of the NASCAR Nationwide DRIVE4COPD 300 at Daytona International Speedway on Saturday. Multiple fans were injured when debris from Larson's car went into the grandstands.

Kyle Larson (32) goes up into the fence after being involved in a crash on the final lap of Saturday's Nationwide race at Daytona International Speedway.

Kyle Larson's No. 32 car goes airborne during the wreck.

Kyle Larson's No. 32 car is torn apart during the scary wreck as Travis Pastrana (60) and Nelson Piquet Jr. try to avoid the damage.

The No. 32 car driven by Kyle Larson goes sideways during the crash.

Kyle Larson's car (right) spins away from Regan Smith's (7).

Kyle Larson climbs out of his car. “Luckily I was all right and could get out of the car quick," Larson said after the race.

Kyle Larson's car leaves a trail of flames following a crash at the conclusion of the NASCAR Nationwide race at Daytona.

Kyle Larson's car comes apart after the late wreck.

The cars of Kyle Larson (left) and Regan Smith spin after the horrific wreck.

Kyle Larson's car spins out of control.

Kyle Larson walks away from his car.

Workers investigate the damaged catch fence where the engine from Kyle Larson's car can be seen.

Officials gather debris from the incident.

Emergency vehicles sit on the Daytona International Speedway track.

A Daytona worker investigates the mangled catch fence.

Officials look at the engine and tire of driver Kyle Larson's car after he was involved in a multi-car crash at the conclusion of the Nationwide race.

Debris flies as Kyle Larson's car hits Brad Keselowski's.

Workers are on the scene in the grandstands after the conclusion of the race.

A view of the damaged catch fence at Daytona.

A track official looks at Kyle Larson's car engine, which flew into the catch fence during the DRIVE4COPD 300 at Daytona International Speedway.

The wheel, tire and suspension parts from Kyle Larson's car is seen in the grandstands.

Track workers and officials survey the damage to the catch fence.

Emergency workers check on fans in the stands.

An injured spectators are treated after a crash at the conclusion of the NASCAR Nationwide Series auto race Saturday, Feb. 23, 2013, at Daytona International Speedway in Daytona Beach, Fla. Driver Kyle Larson's car hit the safety fence sending car parts and other debris flying into the stands.

Rescue workers rush to the scene after Kyle Larson's car crashed into the catch fench, injuring spectators at Daytona International Speedway.

An injured spectator is transported by emergency personnel after a crash at the conclusion of the NASCAR Nationwide Series race Saturday at Daytona International Speedway.

An injured spectator is treated after a crash at the conclusion of the NASCAR Nationwide Series race Saturday at Daytona International Speedway.

Emergency officials transport an injured spectator past Kyle Larson's engine following a crash on the final lap of the NASCAR Nationwide Series race at Daytona International Speedway.

An injured spectator is treated after a crash during the NASCAR Nationwide Series race Saturday sent car parts and other debris flying into the stands at Daytona International Speedway.