I am trying to figure out what is the offset of my 2006 dts factory 18 inch wheels 245/50r18. I called two local dealerships and they could not tell me. I know the offset range is between 35 and 40....I am asking because I want to put 24 inch wheels on the car which can be done, there was a thread created about that,I just need to know the offset of the factory wheels so Ill know what offset to get the new wheels built to.....Thanks for the help guys