my 2010 shelby makes a rusty noise when turning curves, kinda like a wagon wheel. I know it's it maybe part of the limited slip. rearend seems to have more slack in drive train than needed. $50k
I had the same issue.. it's something that I experienced after driving for a couple minutes then it started. Dealer told me it is metal shavings in the rear end. Took less then 24 hours to fix, and it's covered.