Joey Logano, who needs to win to make the playoffs, ranked second on the speed chart.

Dale Earnhardt Jr., who needs a win to make the playoffs, was sixth on the speed chart.

Justin Allgaier has best average over 10 consecutive laps.

Interim crew chief says Denny Hamlin is 'motivated' coming into Richmond.

NASCAR America's Kyle Petty, Slugger Labbe and Nate Ryan share which Xfinity drivers they'll be watching in Richmond.

The day for Xfinity Series teams begins at 7 am ET and doesn't end until well after the sun sets.

The former Cup Series driver spoke with Nate Ryan about his life since a major wreck at Richmond in 2003.

Kyle Petty and Slugger Labbe comment on whether teams should be disqualified if their cars fail post-race inspection.

Kyle Busch and Kevin Harvick are among the hot and Joey Logano among the not heading into the regular-season finale.

With Hurricane Irma approaching, NASCAR's Homestead-Miami and Charlotte Motor Speedway are among the tracks preparing for the weather to come. Meanwhile in Texas, Brennan Poole is helping with Hurricane...

Elliott Sadler has the chance to clinch the regular season Xfinity title this weekend at Richmond, which gives him plenty of motivation to find victory lane. However, he's not the only driver to keep an eye...

Jerry Nadeau almost lost his life in 2003, registering one of the hardest crashes on a NASCAR on-board data recorder and he hopes by donating his brain researchers will be able to learn from his injury.

Following news of Denny Hamlin's encumbered Darlington win, teams will continue to push boundaries until NASCAR stiffens the punishment.

Denny Hamlin's recent penalties have led to the discussion of whether or not it's time for NASCAR to consider stripping wins for certain penalties.

NASCAR America's analysts also discuss whether race wins should be stripped if a car fails inspection.

Hendrick Motorsports, Chip Ganassi Racing and Richard Childress Racing among groups raising awareness for hurricane relief.

NASCAR rules bulletin reveals changes to engine rules for next season.

Jimmy Makar attributed the inspection failures to the wear-and-tear of Darlington and NASCAR's inspection process.

Though he now lives in the Dallas area, David Starr plans to soon return home to Houston to help those in need.

Darrell Wallace Jr. will drive the No. 98 Ford for Biagi DenBeste Racing at Chicagoland Speedway.

The field for the upcoming NASCAR Cup playoffs will be set after Saturday's race.

The Dillon brothers have been competitive with each other their whole life.

The Stewart-Haas Racing driver explains the Zen attitude she is embracing despite an uncertain racing future.

Racing is in Dillon's blood. He's a third-generation racer.

Austin Dillon may want to pick a better time to hang out with fans than 4 a.m.

Dale Jr. will have Travis Mack as his interim crew chief in the regular-season finale at Richmond after Greg Ives was suspended for unsecured lug nuts.

Take wins away from teams that break rules, Jeff Burton says.

There's chaos at every corner as the NASCAR Cup Series heads to Richmond for the regular season finale on Saturday at 7:30 p.m. ET on NBCSN.

Xfinity Series crew chief, who has worked with several drivers this season, will be atop the No. 11 pit box for Richmond and Chicagoland.

Austin Dillon answers questions from the Twitter mailbag, including one about his 4 a.m. visit with fans at Darlington.

Growing up in a NASCAR family, Austin Dillon spent a lot of time at the racetrack and became acclimated to the sport at an early age.

The competition never stops between Austin Dillon and his brother Ty, as they go head-to-head in everything from NASCAR to basketball to fantasy football.

While Denny Hamlin's team was penalized for infractions at Darlington, the penalties will always be associated with him as an individual.

In light of Denny Hamlin's Darlington penalties, Jeff Burton and Dale Jarrett say it's time for drivers to be disqualified if the violation warrants it.

Austin Dillon talks about his season, career and racing roots of his family

Car chief has worked under crew chief Greg Ives on the No. 88 Chevrolet since 2015.

Both of Denny Hamlin's wins were encumbered for violations of the NASCAR rule book.

Singer has sold more than 100 million records worldwide

Those fleeing Hurricane Irma can have free camping or RV parking.

From "The King" pacing the field to Denny Hamlin's epic comeback, "Scan All" recaps the Southern 500.

There are 39 cars entered into the Cup Series regular-season finale at Richmond.

Denny Hamlin had to come back from 23.7 seconds down to win the Southern 500.

Austin Cindric's decision to bump Kaz Grala in the final lap of the truck series race at Bowmanville was a poor decision despite the reward being so great.

Chase Elliott, Matt Kenseth and Jamie McMurray hold the final three playoffs spots but they still have work to do in order to maintain their position.

Go behind the scenes at Darlington as Denny Hamlin won a thrilling Bojangles' Southern 500 in a comeback effort.

Denny Hamlin's unbelievable and masterful run to victory at Darlington in the Southern 500 wasn't appreciated nearly enough.

Team still is mulling its lineup for next season.

NASCAR America breaks down the biggest storyline from Sunday's Southern 500.

Kaz Grala told SiriusXM NASCAR Radio that he will "use up all the room that I need" when racing with Austin Cindric in the future.

A.J. Allmendinger share his keys to winning at Richmond, which include saving his rear tires.

Ty Dillon will be in Germain Racing's No. 13 Chevrolet for the foreseeable future.

NBC Sports' writers also discuss if Martin Truex Jr. is a sure bet to make it to the championship race and NASCAR's lack of debris cautions.

The playoff field will be set after Saturday night's race at Richmond Raceway.

Austin Cindric discussed his contact on the final lap with Kaz Grala on MRN Motorsports Monday.

A look at who is in the playoffs and who isn't in NASCAR's top national series.

The Joe Gibbs Racing driver is still on the right side of the playoff cutoff line.

Kurt Busch and Austin Dillon put together their best races since winning the Daytona 500 and Coke 600.

Here is what drivers were talking about after the race.

No. 88 Chevrolet had two unsecured lug nuts on its right rear after the Southern 500.

Martin Truex Jr. loses the lead in the final laps after tire goes down.

Even with his win, Denny Hamlin is still 195 points behind NASCAR Cup leader Martin Truex Jr.

Erik Jones rallied from having brake issues early in the Southern 500 to finish in the top five at Darlington.

Denny Hamlin won his second Southern 500 over Kyle and Kurt Busch after a late mishap for Martin Truex Jr.

Denny Hamlin explains to the NASCAR America crew his mindset after making a costly mistake and how he was able to come back and win the Bojangles' Southern 500.

Denny Hamlin reveals why his second win at the Darlington Raceway is special moment in his career.

Denny Hamlin celebrated a big win in Sunday’s Bojangles’ Southern 500 in Victory Lane, calling it a “throwback to his history.” Hamlin, who won Saturday’s Xfinity Series at...

Austin Dillon is proud after a fourth-place finish in the Bojangles' Southern 500 race and hopes the momentum will carry into the playoffs.

Kurt Busch wants to focus on the positives of the team's third-place finish at the Bojangles' Southern 500 and believes his team has good momentum.

Matt Kenseth is looking forward to Richmond after struggling at Darlington and coming in sixth place.

Denny Hamlin acknowledges his team faced a huge obstacle to rebound from missing a pit stop but pulled out all of the stops to seal victory at Bojangles' Southern 500.

Kyle Busch says he went 'old school' as he conserved his tires to finish second at the Bojangles' Southern 500.

He scores his second 500-mile victory at Darlington Raceway after Martin Truex Jr. hits the wall while leading.

Martin Truex Jr. breaks down what happened at the end of the Southern 500 and explains how proud he is of clinching regular-season title.

Denny Hamlin celebrates an unbelievable win at the Bojangles' Southern 500 in Victory Lane, calling it a "throwback to his history."

Denny Hamlin chases down Martin Truex Jr. with only three laps to go and holds on for the Southern 500 win, despite missing pit road earlier in the race.

Bojangles' Southern 500 race leader Denny Hamlin narrowly misses pit road in a mistake that could cost him a win.

He takes lead from Denny Hamlin and closes out second segment at Darlington Raceway.

David Ragan is fortunate to not hit a wall after he loses control during a turn and spins out.

Martin Truex Jr. sweeps the first two stages of the Bojangles' Southern 500 race, a result that sees him become regular season champion.

A.J. Allmendinger and Matt DiBenedetto force the fifth caution of the Bojangles’ Southern 500 after colliding into each other in lap 167.

Daniel Suarez's car has sparks shoot out of the rear of his car after scraping a wall.

The defending Southern 500 winner has a series-leading 16 stage victories this season.

Martin Truex Jr.uses a late push to edge Kyle Larson and earn his 16th stage win of the season at Darlington Raceway.

Clint Bowyer finishes last at Darlington.

Ricky Stenhouse Jr. forces a caution after he hit the right front of his car against the wall at Darlington Raceway.

After leaving the Bojangles' Southern 500 early, Clint Bowyer says he knew something was wrong when he turned his car back on under caution.

NASCAR Cup stars tested for their 1980s knowledge

Trevor Bayne hits A.J. Allmendinger after coming out of a wall collision.

Ryan Blaney heads to pit road after getting into the wall very early in the Bojangles' Southern 500 at Darlington Raceway.

Austin Cindric is the sixth driver to qualify for the Camping World Truck Series playoffs with a win.

Austin Cindric won his first Camping World Truck Series race Sunday.

The Brad Keselowski Racing driver won at Canadian Tire Motorsport Park after starting from the pole position.

Rutledge Wood quizzes some of NASCAR's biggest stars about Rubik's Cubes, Madonna and Richard Petty ahead in the spirit of Darlington's throwback weekend.

Here is who the NBC Sports writers are picking to win at Darlington Raceway.

Rick Allen, Steve Letarte, and Ken Squier share their favorite memories from Darlington.

Sponsor has been on No. 17 Ford for five races annually the past four seasons.

Dale Earnhardt Jr. has thought about what his emotions will be like at Homestead. It could be like a special moment he shared with Steve Latarte in 2014.

Your updated guide to all of the throwback paint schemes for the Cup, Xfinity and Truck Series this weekend.

All the key details for tonight's race.

The Southern 500 will air at 6 p.m. ET on Sunday on NBCSN.

Austin Cindric earned his first Truck Series pole on his 19th birthday.

Dakoda Armstrong's disappointing finish at Darlington has forced him to be even more aggressive next week at Richmond.

Erik Jones recaps his fourth place finish in the Xfinity race at Darlington.

Cole Custer, Daniel Hemric and Brennan Poole qualify for the 12-driver field to race for the championship.

William Byron discusses his fifth place finish at Darlington and explains what he learned during his first race on the track.

Denny Hamlin scores his fifth Darlington triumph in the Xfinity Series.

NASCAR fans at Darlington attempt to answer trivia questions about the year 1987.

After finishing second just behind Denny Hamlin, Joey Logano explains why the last restart cost him the race.

After winning his fifth NASCAR XFINITY Series race at Darlington, Denny Hamlin discusses the impact his team had on the handling of his car in the second half of the race.

Denny Hamlin passed Joey Logano in Turn 4 on the final lap to win at Darlington Raceway.

Denny Hamlin explains how he was able to fight off Joey Logano to win his fifth XFINITY Series race at Darlington.

Denny Hamlin got the last laugh at Darlington as he passed Joey Logano during the final turn.

Ty Dillon gets loose coming out of a turn after taking an aggressive line.

Matt Tifft makes contact with the inside wall at Darlington after colliding with another car on the opening lap.

Kevin Harvick has started from the pole in the Southern 500 three of the last four years.

After winning the pole for the Bojangles Southern 500, Kevin Harvick explains why he loves racing at Darlington.

ESPN reports Subway has ended its relationship with Joe Gibbs Racing after three seasons.

Christopher Bell topped Noah Gragson and Kaz Grala in the final practice at Canadian Tire Motorsport Park.

Ricky Hendrick tragically died in 2004, but his legacy lives on to this day.

Denny Hamlin will start from his 21st Xfinity pole in the Sport Clips Haircuts VFW 200.

Mark Martin, Jeff Burton, Dale Jarrett and Kyle Petty get behind the wheel of vintage stock cars and hit the pavement at Darlington.

Kevin Harvick was close, but couldn't get past Denny Hamlin, who takes first in Xfinity qualifying at Darlington.

Brandon Jones damaged his car during XFINITY Series qualifying at Darlington by hitting the wall coming out of a turn.

Ricky Hendrick is being honored by the No. 9 Chevrolet's paint scheme in the Xfinity race.

Austin Cindric, Christopher Bell and Ryan Truex are the top three in practice.

Voting begins at 12:01 a.m. ET on Sept. 3 at nmpamostpopulardriver.com

The race will go 147 laps on the 1.366-mile, egg-shaped oval.

This is the fifth straight years the Trucks have raced at Canadian Tire Motorsport Park.

Clint Bowyer emulates Mark Martin's old school style of racing.

Mark Martin explains the challenges of racing at Darlington, including having to simultaneously worry about the competition, the track, and the equipment.

Kyle Busch is looking for his fourth straight win, having won all three races at Bristol two weeks ago.

Hamlin is fastest in both Xfinity practices Friday at Darlington.

Government evaluation ranked Bristol's bid third among four received.

NASCAR adds three cars to its list of five practice holds for the last session Friday.

Denny Hamlin was No. 1 in the first Xfinity practice and No. 2 in the first Cup practice.

Dale Earnhardt Jr.'s sister says she keeps encouraging her brother in hopes he can have greater success in the final races of his Cup career.

Baldwin starts his new dual role immediately.

The Hendrick Motorsports driver emerged from tailspin last year to win his seventh championship.

Hamlin is one of several Cup drivers racing in both the Xfinity and Cup races this weekend at Darlington.

Erik Jones will miss 15 minutes of Friday's final session.

Check out how Team Penske's drivers do attempting to draw North Carolina.

Get ready to see some great retro paint schemes in Darlington Raceway's third annual throwback weekend.

Fans can donate through the Joey Logano Foundation site. Funds will go to the America Red Cross for Hurricane Harvey disaster relief.

The Chip Ganassi Racing driver explains why it's less likely for blatant on-track retaliation to occur.

GMS Racing won't have a full-time Cup entry in 2018.

Trophy stands 37 inches tall and weighs 70 pounds.

Jeremy Clements' week has been a whirlwind since earning his first career Xfinity Series win at Road America.

Campaign is led by Martin Truex Jr. Foundation to raise awareness of and funds for ovarian cancer and childhood cancers.

This is throwback weekend at Darlington, while the trucks hit a road course for the only time this season in Canada.

"Don't be shy." Easier said than done, Jeff! With the Coke Ride Along winners all together, Jeff Burton gets the ball rolling on another great season.

They don't mean to overly hype the heat, but it'll be really, really hot in a racecar. With the 2017 Coke Ride Along set to kick off, the drivers give their expectations for the big moment.

It's OK to scream, we promise. With everyone suited up, it's time to get this thing underway!

The Track Too Tough To Tame definitely lives up to its nickname.

Both crew chiefs aren't fans of some of today's technology in the sport.

Pit stops aren't just exercises, they have become a combination of strategy and science.

"Lime Green Machine" rides again in Whitt's tribute to his grandfather

Bristol Motor Speedway is one of at least two groups vying to manage the facility.

Team expanded to full-time Xfinity program this year.

NASCAR Hall of Famers Ray Evernham and Dale Inman answer fans questions about throwback paint schemes, new technology and more.

Hall of Fame crew chiefs Ray Evernham and Dale Inman compare pit crew teams from the past to the present.

Martin Trues Jr.'s engine tuner Gregg Huls, A.J. Allmendinger's gas man Jeff Kerr and RCR pit crew coach Ray Wright among this week's Pit Crew All-Stars.

Only the best NASCAR drivers prevail at Darlington making it arguably the toughest race of the year.

Will those that are hot cool down, and will those that are not suddenly get fired up this weekend?

Darlington truly puts drivers to the ultimate test, showing why there's no better place for a race just a few weeks before the playoffs begin.

Hall of Fame crew chiefs Ray Evernham and Dale Inman join NASCAR America to look back on the drivers they worked with during their careers.

The 80's are back for the 2017 Southern 500 live from Darlington on NBCSN. Don't miss a minute of the action beginning at 6 p.m. ET on Sunday, September 3.

NASCAR legends talk about their history in the sport.

With a promotion to Cup and a new number announced, the JR Motorsports driver can focus on winning a Xfinity title.

Scheme is from his first career win at Rockingham Speedway.

The home improvement store company will sponsor Paul Menard and Ryan Blaney next season.

There's been lots of excitement thus far in 2017. We highlight much of it in Best of Scan All.

What's Pistol Pete got for you this week? Check it out.

Bowyer hasn't won since 2012. He's long overdue.

Racing at Darlington is challenging but can also be rewarding -- if you do well, that is.

Larson's car will carry a scheme similar to one that Kyle Petty drove for Felix Sabates.

William Byron will drive the No. 24 as a rookie next season. Hendrick Motorsports will not use the No. 5 next year.

Darlington will be filled with throwback paint schemes and NASCAR America shares their favorites for the weekend's race.

From Darlington's level of fan excitement, to the Silly Season rumor mill and why Joey Logano and Matt Kenseth are drivers to watch. Pete Pistone weighs in on storylines ahead of throwback weekend.

This is the third year pending NASCAR Hall of Fame inductees will serve as grand marshals for Southern 500.

Felix Sabates chats with Kyle Petty about their days racing and what the future holds for Kyle Larson.

AJ Allmendinger gives his thoughts on why fresh tires will make or break drivers at Darlington.

Rookies Erik Jones and Daniel Suarez are likely to struggle at Darlington because they have never raced on the track, allowing some veterans to take advantage.

Clint Bowyer says victory lane is more important than anything heading into Darlington and he knows he has to avoid hitting the wall in order to have a chance.

Relive all the best moments so far in the 2017 season as we take you through the sights and sounds from around the track.

Kyle Larson's throwback scheme for Darlington is revealed as it pays homage to Kyle Petty and Felix Sabates who made the scheme famous.

The NASCAR America crew break down the challenges of Darlington, highlighted by driving less than inch from the wall for four hours.

Kyle Larson's paint scheme for the Southern 500 is unveiled.

The defending winner of the Southern 500 will be sponsored by Bass Pro Shops in Sunday's race at Darlington Raceway.

Motorcraft and Quick Lane Tire and Auto Centers will sponsor Paul Menard in 14 races next season.

Chase Elliott is one of three winless drivers trying to hold onto their playoff spots with two regular season races left.

Former Truck Series driver Shane Sieg died two weeks ago at the age of 34.

NBC Sports' writers also discuss NASCAR upsets and if a Southern 500 streak will continue.

Jame McMurray's No. 1 Chevrolet will be based on the car David Pearson won his final Cup race with in 1980.

A full field of 40 cars are entered into the 68th annual Southern 500.

A look back at Bill Elliott's historic win in the 1985 Southern 500.

Watch Jeremy Clements and his family recount his recovery from a horrific hand injury 13 years ago.

Parker Kligerman discusses Jimmie Johnson's lack of highlights in the last few months.

Jeremy Clements recalls the time he almost lost his right hand in a racing accident and his incredible journey back to getting behind the wheel.