NASCAR.COM's David Caraviello talks with Chad Knaus about the nerves associated with chasing the historic fourth consecutive title, and the potential of the No. 48 team.

Rutledge Wood from SPEED and "Dirty Jobs" host Mike Rowe reflect on the dirtiest job they have ever done.

The four-time champion reveals his favorite sports movie, where he likes to spend down time and his greatest racing moment.

Jimmie Johnson dodges trouble to finish fifth and secure his historic fourth consecutive Sprint Cup Series championship.

Listen as Tony Stewart and Juan Pablo Montoya battle in the season finale.

Jimmie Johnson talks with NASCAR.COM's David Caraviello about his historical fourth consecutive title and what he wants his legacy to be.

Take a look back at Jimmie Johnson's historical championship seasons.

Relive Denny Hamlin's fourth victory of 2009 and Jimmie Johnson's historic fourth consecutive Sprint Cup title with the sights and sounds from the Ford 400.

Jimmie Johnson cruises to his fourth consecutive Sprint Cup championship.

Kenny Wallace and Larry Mac answer fan questions on changes in NASCAR for 2010, when Fords will be competitive again and who will win their fifth championship first.

After a strong start the No. 47 is sidelined with battery problems.

Elliott Sadler is wrecked after being caught up in a chain-reaction crash on pit road.

A solid pit stop helps Jimmie Johnson keep his track position en route to a fourth consecutive championship.

Jimmie Johnson joins the SPEED gang to reflect on his fourth consecutive Cup championship and trade helmets with Kenny Wallace.

The championship runner-up comments on Rick Hendrick's family emergency, the season that was, and the enjoyment he receives from competing.

Joey Logano comments on earning Rookie of the Year honors and his 2009 campaign.