I hope it rains (40% chance according to Brundle yesterday) in Brazil and that will really put the cat almost the pigeons!
Always hard for the championship leader to decide on what to do regarding tactics with only one race left and everything riding on it, does he defend his points lead (look at how Hamilton almost FUBAR'd that a few years ago) or go for win and wheel to wheel racing with the chance of getting involved in an accident and losing it all.