After racing in Indianapolis, with its unusual layout and Michelin's conservative tyres, the return to Europe was expected to tip the balance back in Renault's favour. But the French Grand Prix proved to be another race in favour of Bridgestone.
Magny Cours is not a classic track, but it provides a real test for the teams. Its layout provides a good mix of overtaking opportunities through its chicanes and fast main straight, as well as a challenge for the chassis, with the long Estoril corner. But, overall, it's the track's surface that challenges to the teams, as it places a heavy demand on tyre performance.
Bridgestone's advantage over the weekend could be seen in two ways: either the Japanese tyres were again suited to this specific track, or Bridgestone has found a tyre that really works.
If the latter is the case, then Renault will be challenged for the balance of the championship, unless Michelin has a response. Although, realistically, the one-off track surface in France would explain the shift in advantage.