 Spyker brought a new chassis to the test and raced it for the first time, with Adrián Vallés and Giedo van der Garde taking the car around the track for 64 laps.Nick Heidfeld ended his test session early after complaining of back problems.In day two of testing it was Jarno Trulli's turn to take the Toyota car around Silverstone, and managed to set the fastest time before the session was slowed down by showers.