Sponsor income has just been increased at all levels to better cover costs. All existing contracts have also been updated to match the new income levels.
UPDATE [18:56 GMT]: The "buy now" option on auctions now also costs much less cash than buying through bids on an auction, enabling a cheaper way to get new drivers and staff. This is balanced by the fact that it costs more Tokens, offering the opportunity to buy by spending more Tokens or Cash depending on what you have available.
Please post your feedback here on how you are finding managing finances in the new iGP in this thread, in a constructive manner, and I'll do my best to respond in a constructive manner and see what we can do to help. :)
I have two ideas which may be implemented in the next week or so. One is to decrease the cost of lower level facilities and the other is to make "buy now" option on auctions cost much less cash than the "bid" option [UPDATE: now implemented].