Martin Truex Jr. and Kyle Busch have four wins apiece this season after Sonoma, so is there a rivalry between teammates? Our Backseat Drivers debate.

NASCAR is back and so are NASCAR.com's Backseat Drivers. Listen in as they debate who has the best shot to win May 17 at Darlington Raceway.

DEAR ABBY: I am an active, retired man who has a serious problem with my slightly younger sister. She’s a loud and aggressive back-seat driver. When she rides in my car, she feels compelled to loudly ...