From 1995 to 2005, Labonte drove for the Joe Gibbs Racing Team where his car, number 18, was sponsored by Interstate Batteries. In 1993 (his rookie season) and 1994, he drove the number 22 Maxwell House car for Bill Davis Racing. Bobby was born in Corpus Christi, Texas. His older brother, Terry, is also a prominent NASCAR driver; the two are the only brothers to have both won the championship in NASCAR's top series (the other family pairs to have titles, Lee and Richard Petty and Ned and Dale Jarrett, are father-son combinations).