 Complete the following phrase:  It was a solid début for the R31 with Vitaly Petrov qualifying sixth and then taking his first F1 podium in the opening round of in Melbourne. This was followed by an equal qualifying and race result for Nick Heidfeld in the while teammate Petrov was launched in the air by a high kerb with a few laps remaining. This was to be the last of Renaults podiums though, and they remained fourth in the Constructors Championship after Petrovs ninth in 