The TIS07 7.5 appears to only come with offset of 42, which won't fit our car(except maybe the AWD?). Maybe TIS makes them with the correct offset, but these 3 sites don't list them with the correct offset. You will need to call/email someone to find out if you can get them in 7.5.
http://www.bigwheels.net/?location=w...model=TIS%2007
http://www.buywheelstoday.com/products/?id=1256
To link to this site, you will have to delete the _ in front of the "com".
Somehow the link cannot be referred to.
http://www.1010tires._com/wheel.asp?...&wheelmodel=07
If you are going with 20's the only advantage of 7.5 vs 8.5 would be cost and lighter weight.