I have for sale the 18" rims and tires and come stock on the 2010 Dodge Challenger SE and R/T.
They were only on my car for around 200 miles before i upgraded to new rims and tires, so they are pretty much brand new.
The tires are Continental 225/60/R18. I'll post a pic of one of them and of course will get more if seriously interested. Price is $1000 OBO.