I noticed that when you sell a driver (auction or directly) the money doesn't appear in the break down of the finances, so, you don't know how much you earned selling the driver... it should be there somewhere, all the money movement should be reflected in the finances page.
Also about this I would appreciate some notification at least when one of your drivers is sold. Also more notifications, please: when buying a new driver, selling a driver, when someone outbids you, etc... the lack of notifications is very annoying!