Carnell Lamar "Cadillac" Williams (born April 21, 1982) is an American football running back for the St. Louis Rams of the National Football League. He was drafted by the Tampa Bay Buccaneers in the first round of the 2005 NFL Draft. He played college football for the Auburn University Tigers.
Williams was born in Gadsden, Alabama, and came out of high school as a very highly rated and very heavily recruited player. He originally committed to the University of Tennessee but changed when Auburn University football head coach Tommy Tuberville visited Williams personally at his home in Gadsden, Alabama and convinced him to play football at Auburn.
Williams moved on to Auburn University after graduating from Etowah High School in Attalla, Alabama. He got the nickname 'Cadillac' from a TV sportscaster in Alabama for the style and the way he ran...he was a notch above everyone on the field, and the name stuck." While at Auburn University, he majored in Sociology. When the season started in 2001, he was a true freshman, and the #3 running back on the depth chart, but in the 8th game of the season he had a break-out game against the University of Arkansas and showed his outstanding talent and versatility as a running back. After the Arkansas game, Williams was promoted to starting running back. Williams did not miss a beat and in the next game, the annual Deep South's Oldest Rivalry game against the University of Georgia, he led Auburn to an exciting victory as he amassed 179 yards on an Auburn record 41 carries in one game, and scored 2 touchdowns one of which was the game winner. Unfortunately for Williams, he was injured early in the bitter in-state rivalry game against the University of Alabama (also known as the Iron Bowl) with a broken collar bone and had to sit out the rest of the season. Before breaking his collarbone, Williams played in nine games and finished the season with 614 yards on 120 carries (5.1 avg.) and six touchdowns.