Hamburg - Williams will unveil its car for the 2009 Formula One season on January 19 in Portugal, the British team said on Thursday.
The rollout of the FW31 car with drivers Nico Rosberg of Germany and Kazuki Nakajima of Japan will take place on the Algarve Motor Park Circuit near the town of Portimao.
But the 2009 colours won't be unveiled until February 27, Williams said. The January rollout will see a car with a winter test painting.
The 2009 season starts on March 29 with the Australian Grand Prix in Melbourne.