In terms of how they get paid, NASCAR drivers are different from athletes in team sports.
Read: Today's Richest Athletes in the World
Find Out: Which Athletes Earn the Most Per Hour?
Whereas NFL and NBA players receive the bulk of their income from a signed contract with a team, a NASCAR driver's money comes from a combination of salary, purse winnings from races and endorsements.
One of the sport's all-time greats, Jeff Gordon, is worth a cool $200 million. Let's mark the occasion with a challenge: Can you guess how rich each of these current NASCAR drivers is?
Denny Hamlin
Denny Hamlin, 40, is a three-time Daytona 500 winner, including back-to-back victories in 2019 and 2020.
The Joe Gibbs Racing star has 44 career Cup victories. Despite leading the NASCAR point standings in 2021, he has yet to win a race as the regular season nears its close.
Hamlin has plenty of endorsements, including with Domino's and FedEx.
Check out his total net worth here.
Kevin Harvick
At 45, Kevin Harvick already has compiled a Hall of Fame-worthy NASCAR career. He won the 2014 NASCAR Cup Series championship and the 2020 regular-season title, as well as the 2007 Daytona 500.
Harvick has 58 career NASCAR Cup Series victories and 119 across all NASCAR race series.
Off the track, he has served as a race broadcaster for Fox, formed his own scholarship foundation and endorsed Jimmy John's, Mobil 1 and more.
Keep reading to discover his total net worth.
Kyle Busch
Kyle Busch, 36, is a two-time NASCAR Cup Series champion (2015 and 2019), with 59 race victories.
The younger brother of Kurt Busch, Kyle is the all-time leader in NASCAR Xfinity Series victories with 102. He has 222 career wins across all three NASCAR series.
Known as "Candy Man" for his longtime association with candy manufacturer Mars Wrigley, Kyle drives a car with M&M decals.
Can you guess what a sweet deal he got, and his total net worth?
Kurt Busch
Kurt Busch, 43, has dropped hints recently that he might retire after this NASCAR season. If he does, he will wrap up a stellar career, highlighted by the 2004 NASCAR Cup Series championship and the 2017 Daytona 500.
The versatile driver also won the 2003 IROC championship and raced in the Indianapolis 500, 24 Hours of Daytona and NHRA events.
Busch, known for feuds with other NASCAR drivers earlier in his career, has a big sponsorship with Monster Energy.
Read on to see what kind of jolt gives him his net worth.
Jimmie Johnson
One of the greatest NASCAR drivers of all time, Jimmie Johnson has seven Cup Series championships and 83 career victories.