A useful tip for those of you who don't like the pesky 2 day window that the dealerships are available. Need a bit of money? Do driving challenges, save your Cr., and check the dealerships after every other race event until Ruf becomes available. Buy the CTR Yellowbird (and the RGT if you have the cash, fantastic car) and take the Yellowbird to a Drift race at Grand Canyon with the Open Track setting. You'll get around 25,000 drift points per lap max, and this doubles to 50,000 Cr. per lap when you exit and cash in your points. The Yellowbird is not the easiest car to drive on gravel. It'll be sideways or trying to go sideways the whole time, but that's sort of the point of this exercise. Link a few corners together and you can bank 10,000 drift points at once. Easy way to make 200,000 Cr. in 10 minutes and just a few laps. I'm sure there are better cars to use, but the Yellowbird is the best I've found so far. I'm just trying different cars and seeing which are best. As a side note, the '09 Nissan GT-R Spec V. is a devastatingly powerful and effective car on tarmac. Very uneventful to drive, but effective nontheless. Horrible on dirt.