Biography:Ralph Dale Earnhardt Jr. (born October 10, 1974) is an American semi-retired professional stock car racing driver, team owner, author, and an analyst for NASCAR on NBC. He competes part-time in the NASCAR Xfinity Series, driving the No. 8 Chevrolet Camaro for his team JR Motorsports. He is the son of Dale Earnhardt Sr., who was inducted into the NASCAR Hall of Fame. He is also the grandson of NASCAR driver Ralph Earnhardt, the brother of Kelley Earnhardt-Miller, the half-brother of former driver Kerry Earnhardt and the uncle of driver Jeffrey Earnhardt.