Martin Lee Truex Jr. is an American professional stock car racing driver. He currently competes full-time in the Monster Energy NASCAR Cup Series, driving the No. 19 Toyota Camry for Joe Gibbs Racing. He is the 2017 Monster Energy NASCAR Cup Series champion and a two-time NASCAR Xfinity Series champion; having won the title in 2004 and 2005. His younger brother, Ryan, is a champion in the NASCAR K&N Pro Series East division and currently races in the Xfinity Series, while his cousin Curtis raced for JR Motorsports.