[Moupponge]

The way I figure it, based on the order of the 2009 season and the order in which the applications were received by the FIA, the entry numbers for 2010 should be thus:

1 2 - Brawn GP
3 4 - Red Bull Racing
5 6 - McLaren
7 8 - Ferrari
14 15 - Williams
16 17 - Renault (maybe?)
18 19 - Force India
20 21 - Toro Rosso
22 23 - US F1
24 25 - Campos
26 27 - Manor
28 29 - Lotus
30 31 - Qadbak

However, regulation 21 of the FIA Sporting Code seems to be about the only thing which addresses what numbers must appear on the cars.

What I'm wondering, is if someone wanted to either take up the vacated spaces (say Lotus taking up 11 & 12) or even someone running completely out of order (like Brawn running 1 & 722) would the FIA have a problem with this? Would Ferrari want to run something as lowly as 7 & 8 when they could for instance take back 27 & 28 by force?