Williams has confirmed it will retain Felipe Massa and Valtteri Bottas as its drivers for the 2015 Formula One season.
Indianapolis 500 winner Ryan Hunter-Reay is sticking with Andretti Autosport.
AJ Allmendinger beat Marcos Ambrose on a two-lap dash to the finish to win the NASCAR Sprint Cup race at Watkins Glen International on a somber Sunday.
Former MotoGP champion Jorge Lorenzo has agreed to a two-year contract extension with team Yamaha.
Azerbaijan is set to host a Formula One race in 2016.
The chief executive of the Brno circuit says it doesn't have the money to organize the Czech MotoGP next year.
The future of IndyCar at Pocono Raceway is in jeopardy because of a dramatic attendance drop expected for Sunday's race.
Joe Gibbs Racing announced contract extensions with driver Matt Kenseth and sponsor Dollar General on Saturday, but the real work for the team involves returning Kenseth to victory lane.
Greg Biffle says he's still working on a new contract to stay at Roush Fenway Racing despite reports he's already signed an extension.
Clint Bowyer is heading home to Kansas Speedway this weekend with a new wife, a baby on the way and now a three-year contract extension that will keep him with Michael Waltrip Racing.
Troubled NASCAR team Swan Racing has found a home for driver Cole Whitt, while keeping Parker Kligerman under contract.
Greg Biffle and Roush Fenway Racing are getting closer to a contract extension and could have an announcement soon.
Pirelli has secured a new three-year contract with motor sport's governing body to remain Formula One's sole tire supplier, a welcome relief for the Italian manufacturer following an extremely difficult season.
Richard Petty Motorsports has reached a three-year contract extension with Smithfield Foods Inc. as primary sponsor for Aric Almirola for 29 races through the 2016 season.
British driver Max Chilton has been retained by Marussia for the 2014 Formula One season.
Michael Annett has signed a deal to drive for Tommy Baldwin Racing in the NASCAR Sprint Cup series next season.