[PANAVIA]

Where thinner / narrower tires will pay off is in transitional handling, from one corner to the next , and dont forget overall gas mileage, wear and tear on the car ( joints /etc )

I have seen a direct link between oversize tires linked to suspension /chassis wear and reduced gas mileage.

there is probably a percent that someone could chime in with. -- I do remember a former car where I beefed up the tire size by about 10% in width ( all 4 ) and dropped about 10% in MPG.

Just a thought!

Steve