So far they have not even managed half a race simulation but they will get within 7% of the Q1 time unless the Mercs decide to get rid of them. There is the possibility that Button will manage to nurse one through to the finish as he's quite experienced at that (especially with Honda) but will he do enough laps to be counted as a finisher?
I think that one will finish. They will be treating this as a testing opportunity rather than a race, so any problem that can be fixed will be, so that they may put on the maximum miles possible. I expect that they will be unable to finally fix one of them, so it will DNF. The one that finishes will be so far behind the winner, he would need the HUBBLE to see it!