Hi.  I've been playing RR3 completely on the legit (no hacking, no mining, etc) for a while nowand have yet to spend any real world money.  425 gametime hours to be exact.  I have 70 out of the 88 cars, and almost a $50M garage value.  

I seem to be at an impasse.  The Spa segment of LeMans is only open for a few more days and I have 13GC and 0 911RSRs.  My 50 years of 911 is sitting at 50% completion so that I don't unlock the '13 RSR and miss my showcase discount.  So, best case scenario, I need 480 GC.  

Do you guys have any suggestions on how I might accomplish this without dropping $60 i don't have in the real world?