He accomplished the first two Cups driving for Joe Gibbs Racing ( JGR ) in the No. 20 Home Depot Chevrolet .
Stewart won three NASCAR Sprint Cup championships : 2002 , 2005 , and is the reigning 2011 champion .
Stewart accomplished the first two Cups driving for Joe Gibbs Racing ( JGR ) in the No. 20 Home Depot Chevrolet .
Stewart won three NASCAR Sprint Cup championships : 2002 , 2005 , and is the reigning 2011 champion .