Sounds like a Steeda wheel right? The Spyder? I know the offsets on those are 45+ in the front and I think...60+ in the rear?
Yes, Steeda Spyders are available in 20x11, as are Shelby CS1s, several Forgestar offerings, and of course custom wheels.
2012 P8C, HP, 300A, 55D, 457