I've got 7.9mil, do I save up for one of the 20mil legendary cars or get the F2007 that i want??? Do we have any idea how long these seasonals will pay out?
You can get the Lvl. 24 Ticket by golding all events in the Endurance Series, in either A-Spec or B-Spec. Or you can trade via Marketplace. Once you got it, you can raise chances of getting the F1 by saving before using it, then transferring it to a USB stick. If the ticket gives you something else, retry by copying the save from the USB back to the PS3 (It will override the existing one). But note that only three cars is at Lvl. 24: The FGT, the F2007, and the F2010. And to answer the other question: The fastest way to earn Credits is doing the Kei Challenge on the Eifel track. The Credits you get on that event is 305,100, and it takes only 3 minutes to complete it. However, the Supercar Festival and Ferrari F1 Challenge provides the best Credits, but at a much slower pace and Cr/min.
