The 2005 NASCAR Nextel Cup Series was the 57th season of professional stock car racing in the United States and the 34th modern-era Cup series. The season began on Saturday, February 12. The ten-race Chase for the Nextel Cup started with the Sylvania 300 on Sunday, September 18, and ended on Sunday, November 20, with the Ford 400.
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 2006 NASCAR Nextel Cup Series was the 58th season of professional Stock car racing in the United States and the 35th modern-era NASCAR Cup series season. It was started at Daytona International Speedway on Sunday, February 12 with the Budweiser Shootout and ended on Monday, November 20, with the Ford 400 at Homestead-Miami Speedway. The Chase for the Nextel Cup began with the Sylvania 300 on Sunday, September 17, at New Hampshire International Speedway. This was the last full-time season with the Gen 4 car.
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.
Indy NXT, previously Indy Lights, is an American developmental automobile racing series sanctioned by IndyCar, currently known as INDY NXT by Firestone for sponsorship reasons. Indy NXT is the highest step on the Road to Indy, a program of racing series leading up to the IndyCar Series.
The 2006 NASCAR Busch Series opened on February 18, 2006, at Daytona International Speedway, and concluded on November 18, 2006, at Homestead-Miami Speedway. Kevin Harvick, driving for his own team, Kevin Harvick, Inc., as well as for Richard Childress Racing, was declared champion.
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 2004 NASCAR Busch Series began on February 14 and ended on November 20. Martin Truex Jr. of Chance 2 Motorsports won the championship.
The 2000 NASCAR Busch Series began on February 19 and ended on November 11. Jeff Green of ppc Racing was crowned series champion.
The 2003 NASCAR Busch Series began February 15 and ended November 15. Brian Vickers of Hendrick Motorsports won the championship.
The 88th Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana on Sunday, May 30, 2004. It was part of the 2004 IndyCar Series season and the ninth Indy 500 sanctioned by the Indy Racing League. Buddy Rice won the pole position, the pit stop contest, led the most laps, and won the race for team owners Bobby Rahal and David Letterman.
The 2002 NASCAR Busch Series began February 16 and ended November 16. Greg Biffle of Roush Racing was crowned champion.
The 1999 CART PPG/Dayton Indy Lights Championship consisted of 12 races. Oriol Servià was the series champion despite not winning a race.
The 1998 CART PPG/Dayton Indy Lights Championship consisted of 14 races. Future 2002 CART champion and Formula One driver Cristiano da Matta captured four wins on his way to the championship.
The 1996 PPG/Firestone Indy Lights Championship Powered By Buick consisted of 12 races. Canadian David Empringham captured three wins on his way to the championship.
The 1995 PPG/Firestone Indy Lights Championship Powered By Buick consisted of 12 races. Canadian Greg Moore completely dominated the season, winning 10 times and winning the championship by over 100 points over his closest rival.
Scott Dixon 
