225/60/15 is the widest you can fit up front on a set of cop wheels, and those will be close. A 215/60/15 is a safer bet. A 205/65/15 would work too, but finding a match to the rears might be an issue.
I'm curious what you mean by "finding a match to the rears might be an issue". I was going to go with the 205/65 since the coopers are not made in 205/60. You think 65's in the front and 60's in the rear would be noticeable?
Edit: actually, I don't think they come in 205/65 either... its slim pickens with tires...
