Hello Bruce, how is that nice CRS of yours? I have changed the 215/60x15 tyres for a pair of 225/65x15's. These are that little wider but the downside is they are 40mm taller than the 215's. Using these is a double edged sword, they are the width I really wanted and just look nicer however they are much taller. In my cars case as I have both front and rear anti-roll bars, the extra height given by the new tyres has given me just that little extra ground clearance and where I live, it is a blessing.
I have also adjusted the rear spring seat heights and slightly lowered the rear bodywork over the wheels, thus making the gap between tyre and body smaller. A small point in defense of the 215's they are the same width as the original 225/50x16's when mounted in both width and height. Most people thought there was nothing wrong with the 215 tyre and they would be right, it was my decision the change just to achieve a particular look...bloody expensive way to get it though!!!!!
very best wishes, Alan