Williams Martini Racing
Williams has unveiled its new Mercedes-powered FW37 in the pit lane at Jerez, ahead of the first day of testing getting underway.
The squad released images of its car last week but underwent an official presentation with Felipe Massa and Valtteri Bottas taking the wraps from the car.
"After such a strong season in 2014 we are looking to continue the move back towards the front of the grid," said team founder Sir Frank Williams.
"The move from ninth to third was a tough challenge, but ultimately every step up from now on will be even harder. I am confident that we have the appropriate personnel and talent in this team to make those steps.
"We have an experienced driver line-up, with both drivers finishing on the podium throughout last year and hungry for more success in 2015, new commercial partners to add to the continued support from our already impressive roster, and have a technical team that is amongst the best on the grid.
"I am looking forward to seeing the car in testing and assessing how other teams have fared over the winter in comparison to us. We should, once again, have a very exciting season ahead of us which will hopefully bring more success to Williams."
