Red Bull, Williams, Force India and Honda all failed to score points in Sunday's Belgian GP.
Toyota and Williams were both knocked out of Spa qualiyfing in the second segment.
There were top ten places in Spa's practice for Nico Rosberg, Seb Vettel, Adrian Sutil and Jarno Trulli.
Kazuki Nakajima is hopeful of staying on at Williams next season, conceding it is probably his only option of a F1 race-seat.
Things have not gone according to plan for Williams this year, the team's technical director, Sam Michael, has admitted.
After a great showing at Spa last season, Nico Rosberg is looking forward to a happy return while Kazuki Nakajima is hoping for a solid debut.
Sir Frank Williams has been awarded the Tom Wheatcroft trophy in recognition of his contribution to world motorsport.
After returning to the points in the European GP, Nico Rosberg is confident that Williams are "heading in the right direction."
There were points in Valencia for both Toyota drivers, Sebastian Vettel and Nico Rosberg.
There were top ten grid slots in Valencia for both Toro Rosso drivers, Jarno Trulli and Nico Rosberg.
Red Bull, Williams and Toro Rosso all failed to find their way into the top ten on the timesheets for Friday's Euro practice.
Nico Rosberg is hoping to "take something positive away" from this weekend's European Grand Prix.
Nico Rosberg and Kazuki Nakajima are eager to return to the track after their mid-season break.
Nico Rosberg has echoed Fernando Alonso's sentiments on how best to approach the European Grand Prix in Valencia.
Nico Rosberg has confirmed he will remain at Williams in 2009, however, his long-term future has yet to be decided.