Pittsburgh Steelers wide receiver Antonio Brown, center, stands in front of his custom Rolls Royce with a Pittsburgh Steelers theme as he arrives for NFL football camp at the team training facility in Latrobe, Pa. on Thursday, July 28, 2016. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers wide receiver Antonio Brown is driven in his custom Rolls Royce with a Pittsburgh Steelers theme as he arrives for NFL football training camp at the team training facility in Latrobe, Pa. on Saturday, July 25, 2015. (AP Photo/Keith Srakocic)

Adrian Peterson #28 of the NFC All-Stars Minnesota Vikings shakes hands with an automobile representative and smiles as he stands in front of his new car awarded to the Most Valuable Player for his efforts against the AFC All-Stars during the 2008 NFL Pro Bowl at Aloha Stadium on February 10, 2008 in Honolulu, Hawaii. The NFC defeated the AFC 42-30. (AP Photo/Paul Spinelli)

Pittsburgh Steelers linebacker James Harrison drives a subcompact car as he arrives at their NFL football training camp in Latrobe, Pa., Friday, July 31, 2009. (AP Photo/Keith Srakocic)

Pittsburgh Steelers wide receiver Antonio Brown gets out of his custom Rolls Royce with a Pittsburgh Steelers theme as he arrives for NFL football camp at the team training facility in Latrobe, Pa. on Thursday, July 28, 2016. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers wide receiver Antonio Brown gets out of his custom Rolls Royce with a Pittsburgh Steelers theme as he arrives for NFL football training camp at the team training facility in Latrobe, Pa. on Saturday, July 25, 2015 . (AP Photo/Keith Srakocic)

Jerry Rice of the San Francisco 49ers sits on the hood of his new car holding his Most Valuable Player trophy in New York City, January 1989. Rice was named MVP after catching 11 passes for a record 215 yards in the Super Bowl XXIII game against the Cincinnati Bengals. (AP Photo/David Cantor)

Minnesota Vikings wide receiver Nate Burleson unloads the trunk of his 1978 Cadillac Coupe DeVille after arriving for training camp in Mankato, Minn., Friday, July 29, 2005. (AP Photo/Ann Heisenfelt)

Reggie Bush and his 1967 Shelby Mustang GT500 on May 5, 2013. (Kelly Serfoss/Serfoss Productions)

Denver Broncos wide receiver Demaryius Thomas poses for a photo with his car. (Demaryius Thomas/Twitter)

Johnny Unitas of the NFL champion Baltimore Colts sits behind the wheel of his new fire-engine red Chevrolet Corvette in New York City, Dec. 31, 1958. The car was presented by Sport Magazine in recognition of his outstanding performance in the title playoff game. (Associated Press)

Arizona Cardinals safety Kerry Rhodes during a portrait session at the NFL Network Studio on May 13, 2011 in Culver City, Calif. (Gary A. Vasquez/NFL)

Pittsburgh Steelers' Deshea Townsend drives his 1971 Oldsmobile Cutlass Supreme into camp as he arrives for the beginning of football training camp at the team facility in Latrobe, Pa. on Friday, July 28, 2006. Townsend was one of four Steelers to arrive in classic convertibles from the '60s or '70s. (AP Photo/Keith Srakocic)

Arizona Cardinals running back Garrison Hearst poses for his NFL ProLine Profile card on March 15, 1993 in Phoenix Ariz. (National Football League)

Carolina Panthers' Andre Neblett arrives at Wofford College for the beginning of the NFL team's football training camp in Spartanburg, S.C., Friday, July 27, 2012. (AP Photo/Chuck Burton)

Pittsburgh Steelers quarterback Ben Roethlisberger drives up the driveway by the dormitories as he arrives at the team's training camp in Latrobe, Pa., Friday, July 30, 2010. (AP Photo/Keith Srakocic)

Terry Bradshaw, Sport Magazine's most valuable player in Super Bowl XIII, who led the Pittsburgh Steelers to victory over Dallas Cowboys, waves after accepting the prize of a new car in New York, Thursday, Feb. 1, 1979. Bradshaw won the MVP award while setting Super Bowl records with four touchdowns passed and 318 yards passing. (AP Photo/ML)

Cincinnati Bengals defensive end Antwan Odom at his house Thursday, Dec. 17, 2009, in Irvington Ala . (AP Photo/Brian Lawdermilk)

Chicago Bears defensive end Julius Peppers arrives at NFL football training camp at Olivet Nazarene University in Bourbonnais, Ill., Tuesday, July 24, 2012. (AP Photo/Nam Y. Huh)

Washington Redskins running back Alfred Morris' 1991 Mazda is seen during training camp. (Andrew Walker/Redskins.com)

Arizona Cardinals linebacker Lorenzo Alexander poses for a photo with his Mustang. (Special to NFL.com)

Pittsburgh Steelers free safety Tyrone Carter stands by his modified 1975 Caprice Classic convertible as he arrives for the beginning of training camp at the team facility in Latrobe, Pa., on Friday, July 28, 2006. (AP Photo/Keith Srakocic)

Buffalo Bills' Dwayne Wright arrives for NFL football training camp at St. John Fisher College in Pittsford, N.Y., Thursday, July 24, 2008. (AP Photo/David Duprey)

Pittsburgh Steelers defensive back Keenan Lewis gets out of a Smart car as he arrives for NFL football training camp in Latrobe, Pa., on Wednesday, July 25, 2012. (AP Photo/Keith Srakocic)

Dallas Cowboys running back Tony Dorsett sports a smile, a "No. 1" sign and crutches as he stands beside his car while leaving his hotel for Dallas, Monday, Jan. 16, 1978, New Orleans, La. His team beat the Denver Broncos in Sunday's Super Bowl for the National Football League title. (Associated Press)