The 2005 IRL IndyCar Series began on Sunday, March 6 and ended on Sunday, October 16. The season, which consisted of 17 races, was the 10th season of the IRL IndyCar Series since it split from CART in 1995.
The 2006 IRL IndyCar Series began on March 26 and concluded on September 10. Sam Hornish Jr. won his third IndyCar Series championship. Hornish also won the 90th Indianapolis 500, passing rookie Marco Andretti on the final lap less than 500 feet (150 m) from the finish line. The title chase was very dramatic between Penske drivers Hornish and Hélio Castroneves battling Ganassi drivers Dan Wheldon and Scott Dixon. The four drivers occupied the first four positions in the final race at Chicagoland Speedway, with Wheldon leading Dixon home for a Ganassi 1–2, but Hornish finishing third, edging out reigning champion Wheldon on a tiebreak. Third would have been enough to catapult fourth-place finisher Castroneves to take the title, but he instead ended up two points behind Hornish and Wheldon. Dixon was also in strong title contention, finishing a mere 15 points adrift of the championship.
The 2004 NASCAR Nextel Cup Series was the 56th season of professional stock car racing in the United States and the 33rd modern-era Cup series season. The season began on Saturday, February 7, and ended on Sunday, November 21. Kurt Busch, who drove a Ford for Roush Racing, was the Nextel Cup champion. It would be the last time until 2012 that the championship would be won by someone other than Tony Stewart or Jimmie Johnson.
The 2003 NASCAR Winston Cup Series was the 55th season of professional stock car racing in the United States and the 32nd modern-era Cup Series season. The season began on February 8 at the Daytona International Speedway with the Budweiser Shootout and ended on November 16 at Homestead-Miami Speedway with the Ford 400. Despite only winning one race throughout the whole season, Matt Kenseth, driving the No.17 Ford for Roush Racing, was strongly consistent following the lone win, and was crowned the Winston Cup champion. His only win came in the third race of the 36 race season. Chevrolet took home the NASCAR Manufacturers' Championship after capturing 19 wins and 264 points over second-place finisher Dodge, who had nine wins and 203 points. Ford finished the year third with seven wins and 200 points, and Pontiac finished fourth with one win and 125 points.
The 2002 NASCAR Winston Cup Series was the 54th season of professional stock car racing in the United States and the 31st modern-era Cup Series season. It began on February 10, 2002, at Daytona International Speedway, and ended on November 17, 2002, at Homestead-Miami Speedway. Tony Stewart, driving for Joe Gibbs Racing, was declared as the Winston Cup champion. Bill Elliott won the 2002 NASCAR's Most Popular Driver Award. He would win it for the 16th and final time in his career. He withdrew from the ballot after receiving the award. The NASCAR Manufacturers' Championship was captured by Ford after winning 14 events and gaining 245 points over second-place finisher Chevrolet, who had 10 wins and 211 points.
The 2000 NASCAR Winston Cup Series was the 52nd season of professional stock car racing in the United States, and was the 29th modern-era Cup series. The season began on February 13 and ended on November 20. Joe Gibbs Racing driver Bobby Labonte was crowned champion at season's end. The NASCAR Manufacturers' Championship was won by Ford as they captured 14 wins and 234 points to better Pontiac's 11 wins and 213 points. Chevrolet finished third with nine wins and 199 points.
The 2004 IRL IndyCar Series was dominated by two teams, Andretti Green Racing and Rahal Letterman Racing. While there was great parity in 2003 between Honda and Toyota powered teams, in 2004 Honda began to outshine Toyota bringing their teams Penske Racing and Chip Ganassi Racing down with it, leaving Scott Dixon winless and in 10th place in his attempt to defend his 2003 championship.
The 2001 Indy Racing Northern Light Series saw the addition of five races and loss of one to bring the total to 13. Chip Ganassi Racing returned to the Indy 500 with four cars and were joined on the grid by Penske Racing and Team Kool Green. Sam Hornish Jr. won 3 races on his way to the championship while the less consistent Buddy Lazier won four races on his way to second place in his title defense.
The 2002 Indy Racing League (IRL) was one of transition, with two reigning CART championship teams, Team Penske and Target Chip Ganassi Racing, joining the series with full time entries. The Oldsmobile engine was rebranded as a Chevrolet, and both Honda and Toyota announced their participation in the series starting in 2003 while Infiniti announced its withdrawal.
The 2003 IRL IndyCar Series brought some of the biggest changes in its history. The league adopted the name IndyCar Series, after a settlement with CART prohibiting its use had expired. Several former CART teams brought their full operations to the IRL, most notably major squads Chip Ganassi Racing and Andretti Green Racing, as well as former CART engine manufacturers Toyota and Honda, replacing Infiniti who shifted its efforts to the new feeder series Infiniti Pro Series. Many of the IRL's old guard including Robbie Buhl, Greg Ray, and Buddy Lazier had difficulty competing in this new manufacturer-driven landscape. The league also added its first international race this year, taking over the CART date at Twin Ring Motegi.
The 2001 NASCAR Winston Cup Series was the 53rd season of professional stock car racing in the United States, the 30th modern-era Cup series. It began on February 11, 2001, at Daytona International Speedway and ended on November 23, 2001, at New Hampshire International Speedway. Jeff Gordon of Hendrick Motorsports was declared as the series champion for the fourth time in seven years.
IROC XXIX was the 29th season of the Crown Royal International Race of Champions, which began on Friday February 12, 2005 at Daytona International Speedway. The all-star roster included twelve drivers from eight premier racing series. Mark Martin dominated the season, winning two races and finishing well ahead in the points standings, earning him a record-setting fifth IROC title. As with IROC XXVIII, the drivers used their car colors and numbers from their native series.
The Jimmy Bryan Memorial was an IndyCar Series race held at the Phoenix Raceway in Avondale, Arizona, United States. USAC moved the fall race and added a spring race to the newly built Phoenix International Raceway in 1964. The race became a CART event in 1979, and joined the Indy Racing League in 1996. It was held continuously through 2005.
XXV was the 25th season of the True Value International Race of Champions, which began on Friday, February 16, 2001 at Daytona International Speedway. The initial roster included 12 drivers from four separate Racing Leagues. After the first race, the series continued with only eleven drivers as a result of the death of Dale Earnhardt in the Daytona 500. Bobby Labonte won the championship.
IROC XXVIII was the 28th season of the Crown Royal International Race of Champions, which began on Friday, February 13, 2004 at Daytona International Speedway. The all-star roster included twelve drivers from five premier racing series. Matt Kenseth won the championship, finishing third in the first race, last in the second race, and first in the final two races.
IROC XXVII was the 27th season of the Crown Royal International Race of Champions, which began on Friday, February 14, 2003 at Daytona International Speedway. The roster included 12 drivers from five separate racing leagues. Mark Martin won the first race to tie an IROC record 11 career wins, tying him with Al Unser Jr. and Dale Earnhardt. Rookie Kurt Busch won in only his second start in race 2 after finishing second at Daytona. At Chicagoland, Mike Bliss became the first driver representing the Craftsman Truck Series to win a race in IROC competition. Jimmie Johnson won the final race of the year for his first career IROC victory. Kurt Busch clinched the title with his fourth-place showing in the race, as Mark Martin and Mike Bliss, his closest competitors, finished fifth and tenth, respectively.
IROC XX was the twentieth season of IROC competition, which started on February 16, 1996. It was the first year that the Pontiac Firebird Trans Am was used in competition, and contested races at Daytona International Speedway, Talladega Superspeedway, Charlotte Motor Speedway, and Michigan International Speedway. Mark Martin won the first night race in the history of the series in race three at Charlotte Motor Speedway, and won again in the season finale at Michigan International Speedway to win $225,000 in a come-from-behind IROC championship, his second in three seasons.
The Greatest 33 is a list of top drivers from the history of the Indianapolis 500. In 2011, in celebration of the 100th anniversary of the first Indianapolis 500, the Indianapolis Motor Speedway gathered a panel of media and historians to establish 100 nominees for the best drivers who have participated in the Indianapolis 500 from 1911 to 2010. During the months leading up the race, fans were invited to vote on the best 33 among the nominees, and the finalists were announced in the days leading up to the 2011 race.
The 2003 GFS Marketplace 400 was the 23rd stock car race of the 2003 NASCAR Winston Cup Series. It was held on August 17, 2003 at Michigan International Speedway near Brooklyn, Michigan before a crowd of 150,000. The 200-lap race was won by Ryan Newman of the Penske Racing South team after he started from second position. Kevin Harvick of Richard Childress Racing finished second and Joe Gibbs Racing's Tony Stewart came in third.
The 2002 Delphi Indy 300 was an Indy Racing League (IRL) motor race that took place on September 8, 2002, at Chicagoland Speedway in Joliet, Illinois, in front of approximately 50,000 spectators. It was the 14th of 15 scheduled rounds of the 2002 Indy Racing League and the second annual running of the event. Panther Racing driver Sam Hornish Jr. won the 200-lap race from pole position with the closest margin of victory in the IRL of 0.0024 seconds over Al Unser Jr. of Kelley Racing. Third place was Hemelgarn Racing's Buddy Lazier.
Kevin Harvick 
Hélio Castroneves