CARNESVILLE, Ga. -- Former NASCAR driver James Hylton, the 1966 Rookie of the Year, was killed in a traffic accident Saturday, authorities said. He was 83.
Hylton and his son, 61-year-old James Hylton Jr., died at the scene of the crash, which happened on Interstate 85 in Carnesville a little after 6 a.m., according to the Georgia State Patrol. Both were from Inman, South Carolina.
Investigators said the vehicle traveled off the left side of the road and hit an embankment, killing two passengers and leaving the driver severely injured.
Franklin County Deputy Coroner Clayton Bryant said the three men had to be extricated from the GMC truck, which was pulling a trailer carrying a race car and other equipment.
On Tuesday, Bryant released the cause of the deaths. Hylton died from trauma to the torso, and his son died from trauma to the head and torso.
The three were returning to South Carolina after Friday's ARCA Series race at Alabama's Talladega Superspeedway, as Hylton Sr. still owned a team that competed in the series.
Thoughts and prayers out to Hylton family and friends. James was a legend. He enjoyed his time in stock car racing and saw the sport evolve and grow over the many decades that he was involved. https://t.co/qnDQxfc31J— Dale Earnhardt Jr. (@DaleJr) April 28, 2018
The truck driver's name was not released. Bryant said he was transported to a hospital in Greenville, South Carolina, for treatment of injuries that included several broken bones. Franklin County borders South Carolina.
No other vehicles were involved in the wreck. The State Patrol said it still was investigating and had not determined whether to cite the driver.
The elder Hylton started 602 races in the Cup series and won two races in a career that began in 1964. He finished second in the points standings three times.
"Racing competitively in parts of six decades, James Hylton's dedication, passion and longevity in motorsports is virtually unmatched. Hylton won the rookie of the year at NASCAR's highest level, the 1972 race at Talladega Superspeedway and regularly contended for championships during the early years of his career," NASCAR, which also owns ARCA, said in a statement. "His racing influence continued into the ARCA series, where he competed as a driver and, most recently, a car owner. We have lost a truly special member of the racing family and a beloved figure among generations of competitors and race fans alike. We extend our deepest condolences to the Hylton family on the tragic loss of James Hylton and his son James Jr."
Born on his family's farm in Virginia in 1934, Hylton started driving in his father's Ford Model T. His brother taught him how to work the pedals. Hylton worked on the farm to help his family make ends meet during the Depression.
From that humble beginning, Hylton embarked on a winding career in motorsports. He served as a mechanic for Rex White and then as crew chief for Ned Jarrett in the early days of NASCAR, then got back behind the wheel and placed second in the Cup standings in 1966.
Hylton also finished second in points to Richard Petty in 1967 and 1971. His victories came at Richmond in 1970 and Talladega in 1972. In all, the good-natured Hylton racked up 140 top-5 finishes and 301 top-10s in the Cup series.
Hylton also attempted 21 Daytona 500s between 1966 and 2007, finishing as high as third in 1967.
He raced full time in the ARCA Series between 2009 and 2013. He started 175 ARCA races as a driver, making his final start at the age of 78 in 2013. As an owner, he fielded a car in 638 Cup and 413 ARCA events, with Kirk Shelmerdine earning the team its lone ARCA win in 2003.
Information from ESPN's Bob Pockrass and The Associated Press was used in this report.