I'm just looking to find out how screwed I may be after doing this. So I had to replace my clutch recently, and during the time my car was down, my rear passenger tire somehow went flat. So after the clutch replacement I had another tire I had in storage put on. I usually have 225/55/16's on and the replacement is a 205/55/16. I have noticed that the 205 looks shorter in overall height than my 225's. However I need to get new tires anyway and don't want to waste money getting a new 225 that'll end up being worn more when I can afford to get the rest. I have decided not to drive my car unless absolutely necessary, like tonight. My wife needs her car in the morning before I get off work, so I drove my car to work, 5-6 miles distance tops, and haven't gone over about 40mph. How much damage could I be looking at if tonight's drive, and the drive home in the morning are the only times I drive it with this one mismatched tire? And spyder is AWD which is why I'm asking. If it were still fwd, I would already know answers.