WATCH: Laser technology, other tools help keep NASCAR drivers safe

DAYTONA BEACH, Fla. — In the nearly two decades since Dale Earnhardt died in a crash in the Daytona 500, new tools and technology have come around to prevent further tragedies in racing -- and possibly saved Ryan Newman’s life.

Channel 9 had an exclusive look at some of the cutting-edge technology NASCAR uses for its cars ahead of big events.

Lauren Seabrook had an inside look at a scanning station to see how lasers were used to inspect vehicles for accurate measurements.

“We use a light-based system with cameras to measure the race cars and make sure they reach compliance and make sure no one’s trying to cheat the system somewhere along the line,” said optical scan supervisor Dan Reeves.

The optical scanning station uses 157,000 laser dots to measure each race car in about 30 seconds. The system then crunches the numbers and builds a three-dimensional representation of the car.

“When the car is built per the rule book, it should be all green when it shows up on the heat map,” said Reeves. When the vehicle is out of compliance the colors show up as blue or red.

SEE VIDEO OF THE LASER TECHNOLOGY BELOW:

VIDEO:Take a behind the scenes tour of the new technology used to inspect cars ahead of the Daytona 500 Lasers are used to take the measurements and perform the inspections on the cars.

If the car is deemed out of compliance, it must be returned to the shop for corrections before it can be raced.

“Every one-thousandth of an inch matters,” Reeves said. “If someone is two or three thousand over, in an aerodynamic sensitive area, that can be the difference between first or second when the car is that speed on the track.”

The technology and extra safety precautions came after Dale Earnhardt’s fatal crash during the Daytona Beach in 2001.

Read: Ryan Newman ‘awake and speaking’ in hospital after Daytona 500 crash, racing team says

Since that crash, NASCAR requires the HANS device, which better protects the drivers’ heads and necks, connects to the safety harness and attaches the collar to the driver’s helmet.

The walls around the track are now softer, too, with flaps on the top slowing them down in a crash. Nets keep drivers’ arms inside cars, and steering wheels have been moved more toward the middle, away from the door.

Spectators say they appreciate the safety precautions being implemented.

“I’m a fan of the sport, so I really don’t care who wins or loses," racing fan Jim Hare said. "It’s just a matter of, if everybody gets home safely at the end of the day.”

© 2020 Cox Media Group