I think the most interesting of the Brazilian race is to see who holds on to the tenth spot. As you will know there is no longer a Concorde agreement but rather an ad hoc agreement with the individual teams for signing up to compete for the next 7 years. I believe that Marussia have now signed an agreement with Ecclestone but that does not deflect from the fact that there is only a prize fund allocation for the top 10.
Renault are asking euro 23 millions for their power train. Can Caterham afford that without a slice of the prize fund?