A massive pile-up at the end of the NASCAR Sprint Cup Coke Zero 400 at Daytona saw as many as 13 fans injured, one hospitalised but in a stable condition.
But, miraculously, all drivers involved emerged uninjured from their cars.
In a race that was won by NASCAR veteran, Dale Earnhardt Jr, only three cars on track managed to avoid the high-speed pile-up.
Triggering the astonishing carnage. and the domino effect that then shredded the field, was a coming together that saw Austin Dillon's #3 Chev become airborne, flip across two lines of chasing cars, slam into the fence, then catapult back onto the track in a shower of mangled metal.
When Dillon got out of the car, the crowd, who had been expecting the worst, cheered when he waved and gave the 'thumbs up'.
Despite there being little left of the car, and a dismembered engine sitting folornly near the infield, he was examined then given the all-clear by the track medical centre.
Speaking at the post-race press conference, Earnhardt Jr. quite possibly summed up what was on every driver's mind when he said, "It scared the shit out of me."
Second-placed Jimmie Johnson said he was shocked that Dillon survived. "The fence and cables, it's like a great cheese-grater to a race car and just tears it apart," he said.
Ironically, Dale Earnhardt Sr. was killed at Daytona in 2001 just three laps short of the finish line.
And, two years ago, dozens of fans were injured, some seriously, when rookie NASCAR driver Kyle Larson's car slammed high into the fence, showering spectators with car parts - including the engine and wheels. That crash was also on the last lap.
For the record, Dale Earnhardt Jr. won the 161 lap event, driving his #88 Chevy SS; Jimmie Johnson came in second in #48, also a Chevy SS, and Denny Hamlin, third in his #11 Toyota Camry.