EXCLUSIVE: What happened to Tony Stewart in the sand dunes from eyewitness Don ‘The Snake’ Prudhomme

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Legendary drag racer Don “Snake” Prudhomme gave NBC Sports a first-hand account of Tony Stewart’s accident in the Southern California sand dunes Sunday.

Stewart and a number of current and former racers including Greg Biffle, Jeff Gordon, Ray Evernham, Rusty Wallace and Prudhomme were having a day of fun in the sun and sand when Stewart became separated from the group and went missing for about 90 minutes.

Here’s how Prudhomme described the incident to NBC Sports:

“We were riding these sand rails. We do that quite a bit. We were all together. What really happened is, it isn’t hard to get split off from one another. In other words, if a guy makes a left turn and you’re not watching his flags or there’s dust or something, you can make a right turn and kind of get lost.

“So, we got mixed up and (Stewart) was probably missing for an hour-and-a-half from the pack, at least. He was missing, he was not there. We figured maybe he got hooked up with one of the other guys.

“Then we were stopped and kinda gathered up and started to shoot the s— and asked, ‘Where’s Tony?’ One of the guys (on the dunes) came driving up and said, ‘Hey, one of your buddies is hurt over on the other side of the hill.’

“There was about three of us who went back on our buggies and we came upon him. He was laying there. He got out of it (the sand buggy) and was laying there in the sand on his back.”

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From left, Rusty Wallace, Tony Stewart and Don Prudhomme before they and others including Ray Evernham, Jeff Gordon and Greg Biffle hit the sand dunes this past Sunday in Southern California. (Photo courtesy Don Prudhomme)

Contrary to media reports, Prudhomme said Stewart did not roll his sand buggy. Rather, Stewart apparently caught air in a jump and landed hard.

“What happens in the dunes, there was kind of a big mound and he flew over it and came down hard on the shocks,” Prudhomme said of Stewart. “In other words, it bottomed itself out. What happened then, it drove the seat up into his ass, basically. It was like, BAM! He hit really hard, but we were running pretty fast.

“We pulled up, asked ‘How you doing, dude?’ He was on the ground and said his back’s hurt. We made sure he could move all his legs and everything, so everything was good there.”

Prudhomme said Evernham took charge of the scene. Gordon, car collector Ron Pratte and Prudhomme provided assistance.

“Ray Evernham is a real good guy, a real responsible guy,” Prudhomme said. “He’s been around situations like this before. Basically we got (Tony) into Ron’s cart and Ron drove him real slowly out of there. (Tony) was holding himself up, as if his ass was real sore.

“Ron has a place in the area, so he had his helicopter fly over and land on this pavement because he couldn’t land on the sand. Tony had his arm around my shoulder and had another arm around Ray’s shoulder and Gordon was holding him up by the belt. He was walking real slow and we got him into the helicopter and laid him in the back seat.

“Ray got in the helicopter to go to the hospital. The pilot said he was going to Palm Springs Hospital and got on the radio. Ray was the best guy for the job, so he went with Tony and looked over Tony until midnight.”

Prudhomme defended Stewart’s driving.

“(Stewart) wasn’t driving reckless or crazy or anything else,” Prudhomme said. “He just happened to hit this (sand) ramp and the way it came down, and it was a lot taller or higher up than he probably realized. And it came down and crashed. We went back to get the car he was driving after he got into the helicopter and just fired that baby up and drove it back to the ranch.

“It wasn’t like it flipped over. I’ve heard people say it flipped over. No, it didn’t flip over, it just came down so hard that it messed his back up.”

Stewart was conscious and alert throughout the entire episode, Prudhomme said.

“He was hurting, and we were all concerned about him,” Prudhomme said. “But he wasn’t like knocked out or anything like that. He was totally coherent, totally everything. It’s just his back was screwed up.

“None of us realized how bad it was. The next day Ron and I went over to the hospital to see him and we sat in the room and he was showing us X-rays and s— and talking. Tony’s Tony. He looked at me like he could just get up and walk out of there, but he couldn’t. But he looked great.”

When asked to describe how Stewart looked in the hospital the day after the wreck, Prudhomme borrowed a page from Stewart’s usual comedic playbook.

“He needed a shave and a bath, I know that!” Prudhomme quipped.

“(Stewart) was great. In fact, we were in the hospital and it didn’t look like he was going to have to be operated on. It was just going to be where they were going to put a support on him. He walked around with the doctor early in the morning with a walker.

“So we told him, ‘Wow, that’s cool,’ and he said, ‘Yeah, I don’t think I’ll have to be operated on.’ But apparently when they got him back to Charlotte, these guys, whoever looked at him, felt he needed an operation.

“I just hope he’s going to be alright. He wasn’t doing anything crazy. Those things can run 110 mph pretty easy on the sand. It’s a nice piece of equipment.”

As it turned out, Stewart had traveled a couple of miles in the wrong way, Prudhomme estimated.

When asked about when Stewart was missing, Prudhomme said the three-time Sprint Cup champ was starting to worry if anyone would find him.

“It scared the s— out of us guys,” Prudhomme said. “We were saying that Tony had been missing, and then we’re told Tony’s hurt. It was a ways away from where we were at. We found the trail he was on, went over there, and I said to (Stewart), ‘Dude, how long have you been laying there?’ He said, ‘About an hour-and-a-half.”

But there was a bit of comfort for Stewart, so to speak, Prudhomme added.

“It was the most comfortable place you could lay in the soft sand with a bad back,” he quipped. “In other words, he wasn’t ready to get up. I think he was starting to doze off a little bit (while waiting to be rescued). He just rested there.

“You know Tony, he’s a tough son-of-a-bitch.”

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Dr. Diandra: Crashes: Causes and complications

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Two drivers have missed races this year after hard rear-end crashes. Kurt Busch has been out since an incident in qualifying at Pocono in July. Alex Bowman backed hard into a wall at Texas and will miss Sunday’s race at the Charlotte Roval (2 p.m. ET, NBC).

Other drivers have noted that the hits they’ve taken in the Next Gen car are among the hardest they’ve felt in a Cup car.

“When I crashed it (at Auto Club Speedway in practice), I thought the car was destroyed, and it barely backed the bumper off. It just felt like somebody hit you with a hammer,” Kevin Harvick told NBC Sports.

The three most crucial parameters in determining the severity of a crash are:

  • How much kinetic energy the car carries
  • How long the collision takes
  • The angle at which the car hits

Angle

The last of these factors requires trigonometry to explain properly. You can probably intuit, however, that a shallower hit is preferable to a head-on — or rear-on — hit.

A graphic show shallower (low-angle) hits and deeper (high-angle) hits
Click for a larger view

When the angle between the car and the wall is small, most of the driver’s momentum starts and remains in the direction parallel to the wall. The car experiences a small change in velocity.

The larger the angle, the larger the change in perpendicular speed and the more force experienced. NASCAR has noted that more crashes this season have had greater angles than in the past.

Busch and Bowman both had pretty large-angle hits, so we’ll skip the trig.

Energy — in pounds of TNT

A car’s kinetic energy depends on how much it weighs and how fast it’s going. But the relationship between kinetic energy and speed is not linear: It’s quadratic. That means going twice as fast gives you four times more kinetic energy.

The graph shows the kinetic energies of different kinds of race cars at different speeds. To give you an idea of how much energy we’re talking about, I expressed the kinetic energy in terms of equivalent pounds of TNT.

A vertical bar graph showing kinetic energies for different types of racecars and their energies

  • A Next Gen car going 180 mph has the same kinetic energy as is stored in almost three pounds of TNT.
  • Because IndyCars are about half the weight of NASCAR’s Next Gen car, an IndyCar has about half the kinetic energy of a Next Gen car when both travel at the same speed.
  • At 330 mph, Top Fuel drag racers carry the equivalent of six pounds of TNT in kinetic energy.

All of a car’s kinetic energy must be transformed to other types of energy when the car slows or stops. NASCAR states that more crashes are occurring at higher closing speeds, which means more kinetic energy.

Longer collisions > shorter collisions

That seems counterintuitive, doesn’t it? Who wants to be in a crash any longer than necessary?

But the longer a collision takes, the more time there is to transform kinetic energy.

A pitting car starts slowing down well below it reaches its pit box. The car’s kinetic energy is transformed into heat energy (brakes and rotors warming), light energy (glowing rotors), and even sound energy (tires squealing).

The same amount of kinetic energy must be transformed in a collision — but much faster. In addition to heat, light and sound, energy is transformed via the car spinning and parts deforming or breaking. (This video about Michael McDowell’s 2008 Texas qualifying crash goes into more detail.)

The force a collision produces depends on how long the car takes to stop. Compare the force from your seat belt when you slow down at a stop sign to what you feel if you have to suddenly slam on the brakes.

To give you an idea of how fast collisions can be, the initial wall impact in the crash that killed Dale Earnhardt Sr. lasted only eight-hundredths (0.08) of a second.

SAFER barriers use a car’s kinetic energy to move a heavy steel wall and crush pieces of energy-absorbing foam. That extracts energy from the car, plus the barrier extends the collision time.

The disadvantage is that a car with lower kinetic energy won’t move the barrier. Then it’s just like running into a solid wall.

That’s the same problem the Next Gen car seems to have.

Chassis stiffness: A Goldilocks problem

The Next Gen chassis is a five-piece, bolt-together car skeleton, as shown below.

A graphic showing the five parts of the Next Gen chassis.
Graphic courtesy of NASCAR. Click to enlarge.
The foam surrounding the outside of the rear bumper
The purple is energy-absorbing foam. Graphic courtesy of NASCAR. Click for a larger view.

That graphic doesn’t show another important safety feature: the energy absorbing foam that covers the outside of the bumpers. It’s purple in the next diagram.

All cars are designed so that the strongest part of the car surrounds the occupants. Race cars are no different.

The center section of the Next Gen chassis is made from stout steel tubing and sheet metal. Components become progressively weaker as you move away from the cockpit. The bumper, for example, is made of aluminum alloy rather than steel. The goal is transforming all the kinetic energy before it reaches the driver.

Because the Next Gen car issues are with rear impacts, I’ve expanded and highlighted the last two pieces of the chassis.

The rear clip and bumper, with the fuel cell and struts shaded

The bumper and the rear clip don’t break easily enough. The rear ends of Gen-6 cars were much more damaged than the Next Gen car after similar impacts.

If your initial thought is “Just weaken the struts,” you’ve got good instincts. However, there are two challenges.

I highlighted the first one in red: the fuel cell. About the only thing worse than a hard collision is a hard collision and a fire.

The other challenge is that a chassis is a holistic structure: It’s not like each piece does one thing independent of all the other pieces. Changing one element to help soften rear collisions might make other types of collisions harder.

Chassis are so complex that engineers must use finite-element-analysis computer programs to predict their behavior. These programs are analogous to (and just as complicated as) the computational fluid dynamics programs aerodynamicists use.

Progress takes time

An under-discussed complication was noted by John Patalak, managing director of safety engineering for NASCAR. He told NBC Sports’ Dustin Long in July that he was surprised by the rear-end crash stiffness.

The Next Gen car’s crash data looked similar to that from the Gen-6 car, but the data didn’t match the drivers’ experiences. Before addressing the car, his team had to understand the disparity in the two sets of data.

They performed a real-world crash test on a new configuration Wednesday. These tests are complex and expensive: You don’t do them until you’re pretty confident what you’ve changed will make a significant difference.

But even if the test goes exactly as predicted, they aren’t done.

Safety is a moving target.

And always will be.

NASCAR weekend schedule for Charlotte Motor Speedway Roval

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NASCAR Cup Series drivers race on the road for the final time this season Sunday, as the Charlotte Motor Speedway Roval course ends the playoffs’ Round of 12.

The 17-turn, 2.28-mile course incorporating the CMS oval and infield will determine the eight drivers who will advance to the next round of the playoffs. Chase Elliott won last Sunday at Talladega Superspeedway and is the only driver who has qualified for a spot in the Round of 8.

Entering Sunday’s race, Austin Cindric, William Byron, Christopher Bell and Alex Bowman are below the playoff cutline. Bowman will not qualify for the next round because he is sidelined by concussion-like symptoms.

The race (2 p.m ET) will be broadcast by NBC.

Charlotte Motor Speedway Roval (Cup and Xfinity)

Weekend weather

Friday: Sunny. High of 81 with a 6% chance of rain.

Saturday: Mixed clouds and sun. High of 67 with a 3% chance of rain.

Sunday: Sunny. High of 68 with a 3% chance of rain.

Friday, Oct. 7

(All times Eastern)

Garage open

  • 12 – 5 p.m. — Xfinity Series

Saturday, Oct. 8

Garage open

  • 7 a.m. – 2:30 p.m. — Cup Series
  • 8:30 a.m. — Xfinity Series

Track activity

  • 10 – 10:30 a.m. — Xfinity practice (NBC Sports App)
  • 10:30 – 11:30 a.m. — Xfinity qualifying (NBC Sports App)
  • 12 – 1 p.m. — Cup practice (NBC Sports App, USA Network coverage begins at 12:30 p.m.)
  • 1 – 2 p.m. — Cup qualifying (USA Network, NBC Sports App)
  • 3 p.m. — Xfinity race (67 laps, 155.44 miles; NBC, Peacock, Performance Racing Network, SiriusXM NASCAR Radio)

Sunday, Oct. 9

Garage open

  • 11 a.m. — Cup Series

Track activity

  • 2 p.m. — Cup race (109 laps, 252.88 miles; NBC, Performance Racing Network, SiriusXM NASCAR Radio)

 

Rodney Childers fined $100,000, suspended for four races

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NASCAR has suspended Rodney Childers, Kevin Harvick‘s crew chief, for four races and fined him $100,000 for what the sanctioning body called modification of a part supplied by a vendor.

Harvick, who is out of the Cup Series playoffs, and the Stewart-Haas Racing No. 4 team were docked 100 points.

Harvick’s car and that of Martin Truex Jr. were taken to NASCAR’s Research and Development Center in Concord, N.C. after last Sunday’s race at Talladega Superspeedway. There were no penalties assessed to the Truex team.

Harvick has been particularly critical of the Next Gen car in recent months, once referring to the “crappy-ass parts” provided by suppliers.

Harvick’s car erupted in flames during the Southern 500 Sept. 4 at Darlington Raceway. After he climbed from the smoking car, Harvick blamed the fire on “just crappy parts on the race car like we’ve seen so many times. They haven’t fixed anything. It’s kind of like the safety stuff. We just let it keep going and keep going.

“The car started burning and as it burned the flames started coming through the dash. I ran a couple laps and then as the flame got bigger it started burning stuff up and I think right there you see all the brake fluid that was probably coming out the brakes and part of the brake line, but the fire was coming through the dash.

“What a disaster for no reason. We didn’t touch the wall. We didn’t touch a car, and here we are in the pits with a burned-up car, and we can’t finish the race during the playoffs because of crappy-ass parts.”

MORE: AJ Allmendinger to return to Cup Series in 2023

Unless the team appeals, Childers would miss races at Charlotte, Las Vegas, Homestead and Martinsville and would return for the season finale at Phoenix.

NASCAR president Steve Phelps told the Associated Press that officials have not targeted Harvick. “I would say that’s ridiculous,” he said. “No one has a vendetta against Kevin Harvick or Rodney or anyone at Stewart-Haas Racing.”

On Wednesday afternoon, Harvick tweeted, “Seems strange…” A Childers tweet called the penalty “Shocker…..”.

NASCAR also announced Wednesday it has suspended Young’s Motorsports crew chief Andrew Abbott indefinitely for a behavioral violation during pre-race inspection. He must undergo anger-management training to be reinstated. The team races in the Camping World Truck Series.

Drivers to watch in NASCAR Cup Series race at Charlotte Roval

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The lineup for the NASCAR Cup Series playoffs Round of 8 will be decided in Sunday’s race at the Charlotte Motor Speedway Roval.

Entering the race, the final event in the Round of 12, Austin Cindric, William Byron, Christopher Bell and Alex Bowman are below the cutline. Bowman will miss the race — and thus the cutoff — as he continues to battle concussion-like symptoms. Noah Gragson is scheduled to drive the No. 48 Chevrolet Sunday.

Cindric is tied with Chase Briscoe for the eighth playoff spot, but Briscoe would claim it on the tiebreaker. Byron is 11 points back, and Bell is 33. Hendrick Motorsports has appealed the penalty to Byron that dropped him below the cutline. That appeal is scheduled to be heard Thursday.

MORE: Hailie Deegan to make Xfinity debut at Las Vegas

Any playoff driver who wins Sunday’s race and isn’t already qualified — Chase Elliott qualified for the Round of 8 by winning last week at Talladega Superspeedway — automatically advances to the Round of 8.

Drivers to watch Sunday at the Roval (2 p.m., ET, NBC), the final road-course race of the season:

FRONTRUNNERS

Chase Elliott

  • Points position: 1st
  • Last three races: Won at Talladega, 32nd at Texas, 2nd at Bristol
  • Past at CMS Roval: Won in 2019 and 2020

Elliott is the clear favorite to win a second championship. He won Sunday at Talladega to advance to the Round of 8 and can relax Sunday at Charlotte having punched his ticket. Relaxing isn’t likely, however, as Elliott will be among the favorites to win.

Ryan Blaney

  • Points position: 2nd
  • Last three races: 2nd at Talladega, 4th at Texas, 30th at Bristol
  • Past at CMS Roval: Won in 2018.

Blaney continues along a path that could result in him winning the Cup championship without winning a race. He came within an eyelash of winning Sunday at Talladega but fell victim to Chase Elliott’s last-lap charge. He should be a threat Sunday at the Roval, where he has four straight top 10s.

Kyle Larson

  • Points position: 6th
  • Last three races: 18th at Talladega, 9th at Texas, 5th at Bristol
  • Past at CMS Roval: Won in 2021

Larson’s last win — and his last top-four finish — came at Watkins Glen seven races ago. He is 18 points over the cutline entering Sunday’s race.

QUESTIONS TO ANSWER

Austin Cindric

  • Points position: 9th
  • Last three races: 9th at Talladega, 15th at Texas, 20th at Bristol
  • Past at CMS Roval: Sunday will mark his first Cup race. Has three top threes in four Xfinity starts.

Cindric hasn’t won since the season-opening Daytona 500 and is one of five drivers still in the playoffs who own only one victory this year. His ninth-place run at Talladega ended a streak of four straight finishes of 12th or worse.

MORE: NBC Sports NASCAR Power Rankings

Daniel Suarez

  • Points position: 7th
  • Last three races: 8th at Talladega, 12th at Texas, 19th at Bristol
  • Past at CMS Roval: Best finish in four starts is 13th

Suarez is 12 points above the cutline entering Sunday’s race. He has never led a lap at the Roval and has never finished in the top 10.

Chase Briscoe

  • Points position: 8th
  • Last three races: 10th at Talladega, 5th at Texas, 14th at Bristol
  • Past at CMS Roval: Finished 22nd last year in his only Cup start

Briscoe is teetering on top of the cutline in search of a spot in the Round of 8. He hasn’t won since the fourth race of the year at Phoenix and had a poor performance at the Roval last year.