The sky (and solstice) are listed as a factory 55 offset. This is pretty rare and I am having a hard time finding wheels that match that. Is it not true however that if you are going to use wider tires (say 265 instead of 245) that you would need a smaller offset to keep the same ratio? So maybe a 45 offset wheel would be ok with 265's? Not sure if this is correct, but was hoping to improve my selection since I was going with 19" rims and 265 performance tires anyway.