 Complete the following phrase:  Renault did not demonstrate the same level of pace as in previous seasons, which had seen them win successive World Championships. It remains unclear whether the difference was due to the change of tyre supplier from Michelin to Bridgestone, the driving abilities of Ferdo Alonso, or simply being outpaced in off-season development by the other top teams. Another possibility is that the teams wind tunnel was giving inaccurate data in late 2006 which affected the development of the 2007 car. This was cited by Pat Symonds in an issue of F1 Racing Magazine. In the early races, Fisichella obtained better results than rookie teammate Kovalainen, but in Canada and the USA it was the Finn who claimed the higher finishes. Fisichella was disqualified from the 