While most of the focus was on Renault's launch of the R25 in Monaco on February 1st, elsewhere teams were back on the test track. McLaren kicked off a three-day programme with Alex Wurz leading a small field at Valencia, where he set a best of 1:09.386. Fellow team test driver Pedro de la Rosa rounded off the times in sixth.
Williams' Mark Webber and newly confirmed teammate Nick Heidfeld were second and third fastest respectively, as they began the first full test of the new car. Heidfeld was within four tenths of Webber as the pair commenced getting to grips with the FW27.
"We started testing the new FW27s today following the inaugural runs for the launch yesterday," said test team manager Tim Newton. "Mark and Nick were on duty for the team and spent the session getting acquainted with the new car and completing standard systems checks."
Toyota was the other team present, Ralf Schumacher clocking fourth on the time sheet and team tester Olivier Panis following on in fifth. Renault, Ferrari and BAR are expected to join the track action this week, mostly with their race drivers behind the wheel.