Valtteri Bottas and Mirko Bortolotti to drive for Williams in Abu Dhabi test

Bottas is already the team's official test and reserve driver, and a potential contender for a 2012 race seat if he impresses during the Abu Dhabi sessions.

Bortolotti has been given the opportunity as part of his reward for winning the title in F2 - which Williams builds the cars for.

"I'm obviously really pleased that I have been given the opportunity to test in Abu Dhabi with Williams," said Bortolotti. "I will try to learn the car as quickly as possible and do the best I can for the team.

"I hope to learn lots of information from the engineers during the time I have and just enjoy it. For sure it's going to be a big day for me and I'm looking forward to it."

Bottas has driven Williams Formula 1 cars before but only in straightline testing so is relishing the opportunity of the test, which takes place between November 15-17.

"I'm very much looking forward to these two days in Abu Dhabi," said the Finn. "It's something I have waited a long time for and is a dream come true.

"I have done everything I can to prepare myself for the test physically, and I have done a lot of preparation work with the team in the simulator, so I feel I'm 100% ready. It will be great to have a go on a proper circuit now!"