Bottas, Massa enjoy party with mixed emotions
Williams' Finnish driver Valtteri Bottas (L) and Red Bull Racing's Australian driver Daniel Ricciardo celebrate on the podium at the Silverstone circuit in Silverstone on July 6, 2014 after the British Formula One Grand Prix - by Tom Gandolfini
The 24-year-old Bottas achieved the best result of his career but it was one of the saddest days following high expectation for Brazilian Massa, 33, competing in his 200th race.
But for the Williams team it was continuing confirmation of their return to points-winning form after several years in the doldrums.
Deputy team principal Claire Williams said: "I have to pinch myself. It's lovely to see this after some very difficult seasons. I'm so pleased.
"We have a lot of our staff watching so I'm delighted. The engine's a significant performance differentiator, but it's not just about that the engine.
"We've turned the team around. Hockenheim is just around the corner. Last race was 3rd, this time 2nd, so who knows what happens next?"
She added: "Bottas is just cool and calm in the car. It's a team effort, all the mechanics as well did a good job. We are now P4 in the championship, it's a great home grand prix for the team.
"For Felipe, it's been a hard weekend. We had a lovely celebration for his 200th grand prix last night. We were so hopeful he could have a great race and we are so disappointed for him."
"We did not expect to be so strong in this race," said Bottas.
"The start was good and the launch was very good. After the restart, it was quite straightforward to use the pace of the car without too much risk.
"It's really comfy the Williams car. It's difficult to describe, you are just thinking of how to do a good job. You only realise when you cross the line when you see the results."