Jeff Gordon competed in one race in 1992, and has been racing full time from 1993 to the present season in the Nascar Cup Series.
Jeff Gordon was 22 years old when he drove in his first Nascar Winston Cup Series race.
Dale Jr. was 21 years old when he started racing in the Nascar Busch Series. He was 24 when he started Cup Series racing.
He worked his way up the racing divisions and joined the NASCAR Cup Series in 1992 and in a few years started dominating.
Richard Petty was 21 years old when he started racing in the Nascar Grand National Series.
Matt Kenseth was 24 years old when he drove his first Nascar Busch Series race.His first Cup Series race came when he was 26 years old, in 1998. Kenseth began racing full-time in the Nascar Cup Series in 2000.
Ricky Carmichael began racing in the Nascar K&N Pro Series East when he was 28 years old. The following season he began racing in the Camping World Truck Series.His first Nationwide Series race came at 30 years old.
Kyle Busch began racing in the Nascar Truck Series in 2001 when he was 16 years old. He had to stop due to the age limit being raised. He returned to the Busch Series in 2003 and drove limited Cup Series racing in 2004. He has been a full time Cup Series driver since 2005.
Matt Kenseth was 24 years old when he drove in his first Busch Series race (now known as the Nationwide Series). He was 26 when he started his Nascar Cup Series career.
Jimmie Johnson has been driving in the Nascar Cup Series full time from 2002-2013. In 2001, he only ran three races.
Jeff Gordon is 41 years old.
1989, 1991, 1992, 1995, and 1996.