picking one or two to stick with is the best way to get to an a... bouncing around from all the cars can make figuring any one of them out hard... i usualy pick one series per license category but then focus on one main series to try to score points and do well in... if you can stick in one division and run a lot of the races i think you get i racing credits at the end of the season that you can use towards cars, tracks or even subscriptions... i forget all the criteria as its been a while since ive really played and im sure its changed since i was playing regularly... right now im doing the C class ovals in gander outdoor series trucks, and the rookie pro 2 lite truck dirt street series or what ever....