Nascar 09 question for xbox 360?

Question

im doing a career in nascar and i cant get out of the craftsman truck series! what do you have to do to move up into another series?

Answer 1

go to career mode and go into your sponsors, there should be something where you can swtich between craftman sponsors, NNS and sprint cup, if you click on sprint and accept then you will automactically go into the sprint cup series where you start fresh at daytona and you all you have to do is create your custom car for that series

Answer 2

as you earn reputation points, it unlocks new sponsers and teams. go to the screen where you select your teams, click and hold the left trigger, it will bring up the 3 main series and just scroll down to nationwide and then select your teams.