By Phil Huff
February 1 2007
Following the bad weather at this weeks Valencia test, that has seen heavy rain and cold temperatures, tyre supplier Bridgestone has agreed to extend the test until Friday.
Honda Racing F1 will remain at the circuit until Friday, making this first major test of 2007 a four day event. Honda will be joined by Renault, McLaren and BMW-Sauber, while Ferrari, Red Bull and Williams are expected to stay.
Williams reveal their new car at their Grove factory on Friday, but the car is not expected to run in Valencia.
