Arie Luyendyk, Jr. (born September 18, 1981 in Den Bosch, Netherlands) is an auto racing driver and son of Indianapolis 500 winner Arie Luyendyk. Despite his European birth, all of his adult racing has taken place in North America where his father lives and made his career.

Ed Carpenter is an Indy Racing League driver born March 3, 1981. He is the stepson of Indy Racing League founder Tony George. He and his wife, Heather Carpenter, are expecting their first child in October of 2007. Following a successful career in midget racing that dated as far back as 1989, he moved up to single-seater formula cars in 2002 with the creation of the IRL Infiniti Pro Series.

A.J. Foyt IV (born May 25, 1984 in Louisville, Kentucky) is an American race car driver. He is the grandson of racing legend A. J. Foyt, who guided him through much of his career.

Thiago Medeiros is a Brazilian racecar driver. He was the 2004 Infiniti Pro Series champion for Sam Schmidt Motorsports and attempted to make his Indy Racing League Indycar series debut in the last race of the 2005 season at California Speedway for Dreyer & Reinbold Racing. However, he crashed in practice and could not make a qualifying attempt or participate in the race.

Mark Taylor (born December 16, 1977 in Wimbledon, England) is a racing driver who drove in the Indy Racing League. He drove the entire 2004 season for two different teams, but could not find a seat for the 2005 season. Before driving in the IRL he won the 2003 Infiniti Pro Series season championship, dominating what was perceived as a relatively weak field by winning 7 of the 12 races in the season, driving the #4 car for the Fulmar Panther team.

Jeff Simmons (born August 8, 1976 in Hartford, Connecticut) is an American race car driver in the Indy Racing League for Rahal Letterman Racing. Simmons began his professional career in Indy Lights in 2000, finishing 7th. He was the Infiniti Pro Series runner up in 2003, capturing 2 wins. In 2004, Mo Nunn gave him a chance to qualify his second car for the Indianapolis 500, which he did and finished 16th in the race.

Aaron Fike (born November 24, 1982) is a NASCAR driver from Galesburg, Illinois. He is the driver of the #1 Toyota Tundra Craftsman Truck Series truck and the younger brother of former NASCAR driver A. J. Fike. Fike began racing in 2001 in the USAC Silver Crown Series. He became the youngest driver to win a Silver Crown race (breaking Jeff Gordon's record), and finished tenth in points, earning him the Rookie of the Year award.

Greg Ray (born August 3, 1966 Dallas, Texas) is a former IRL IndyCar Series driver. After winning the SCCA national Formula Atlantic championship in 1993, he moved up to the CART-sanctioned Toyota Atlantic series in 1994. In 1997 he made his Indy Racing League debut driving for Thomas Knapp in an unsponsored black #97 car. He made his mark on the series a year later during qualifying for the Indianapolis 500.

Cory Witherill (born December 17, 1971) is a native American Navajo race car driver from Los Angeles in the Infiniti Pro Series, Indy Racing League, and ARCA series. He made an improbable bump day run on a brand new engine to qualify for the 2001 Indianapolis 500, becoming the first and only full-blooded native American to race in the Indy 500. He finished 19th. In 2002 and 2003, with the collapse of the IRL team he drove for, …

Jon Herb (born June 1, 1970 in Milwaukee) is an American professional race car owner and driver in the Indy Racing League. Herb made his IRL debut in the first race of the 2000 season, but did not compete in any other races that year. He made his Indianapolis 500 debut in 2001, finishing 27th and competing in five other races. He raced in six more races that year, but failed to qualify for the "500" in 2002. In 2003 he moved to the Infiniti Pro Series, …

P.J. Chesson (born December 9, 1978 in Far Hills, New Jersey) is an American race car driver in the Indy Racing League. He made his professional debut in sprint cars in 1998 and from 2000 to 2003 was one of the top drivers in the World of Outlaws winged sprint car series. In 2004 he suddenly decided to change his career path and drove in the IRL's Infiniti Pro Series winning his first three races and finishing fourth in series points despite missing three races.

Billy Roe (born May 7, 1957, Indianapolis, Indiana), is a former driver in the Indy Racing League. He raced in the 1997-1998 and 2000-2002 seasons with 16 career starts, including 2 at the Indianapolis 500. His best IRL finish was a 12th place at Nashville Speedway in 2001. In the 1997 Las Vegas Motor Speedway race, he fielded his own car. Prior to racing in the IRL he competed in Toyota Atlantic from 1991 to 1995, however, …

P. J. Abbott (born May 28, 1964) is a U.S. race car driver. In 2004 he drove two races in the Infiniti Pro Series and prior to that has competed in US SCCA Formula Mazda and SCCA Formula Atlantic. Abbott was born in Bloomington, Indiana.

Matthew Halliday (born July 14, 1979) is a motor racing driver from New Zealand. He currently competes in the Champ Car World Series for Conquest Racing. Following two seasons in Formula Holden, he moved to the United States and ran in both the Indy Lights and Toyota Atlantic series in 2001. In 2002 he moved to the Infiniti Pro Series but was injured after two races.

Alfred Richard Unser ("Just Al" or "Al Unser III") (born October 23, 1982 in Albuquerque, New Mexico) is a professional race car driver in the United States, currently competing in the Indy Pro Series.

Philip Giebler (born March 5, 1979 in Oxnard, California) is an American race car driver. Giebler was considered a top American prospect with an opportunity to race in Formula 1 early in his career. Following years in various Formula 3 ranks, Giebler ran in Formula 3000 in 2003 half the season putting up a number of good results. He returned stateside in '04 running in the Infiniti Pro Series and Toyota Atlantic, capturing a win in his IPS debut at Homestead-Miami Speedway, …