Stumbled across this awesome calculator and think it's one of the best I've seen for visualising the effects of changing offsets, etc.
http://www.wheelsmaster.com/rt_specs.jsp
You can input your car into the calculator and see what fits, or you can load your existing wheels & tires on the left, and your new ones on the right and it'll tell you what the differences are, what to look out for, etc.
http://www.wheelsmaster.com/rt_specs.jsp
You can input your car into the calculator and see what fits, or you can load your existing wheels & tires on the left, and your new ones on the right and it'll tell you what the differences are, what to look out for, etc.