Thanks for the help guys. I kind of suspected that the Matrix tires would be noticeably smaller just with a quick glance at the dealers. I just wanted to see if I could get any more use out of them. I think my safest bet would be to stick with stock size.
I'll keep those Matrix tires and try to sell them off to someone. Unless the dealer wants to give me a package price with the trade in.
This is my first Jeep brand vehicle. I've always wanted to either get a Wrangler or GC. But either I haven't had enough to buy one, or now with my 1 year old daughter it just wasn't practical. We are very excited as my wife also is a big fan of the Compass, although I preferred the Patriot.
At least I found out when I ordered that the 08 Compass also qualifies for the CDN Gvt $1000 rebate as last years did. So I'll probably pick up the same size and use that to pay for them, whenever it comes, probably a long time considering it's a government payment
Anyway, Thanks again for the help guys!