I'v recently purchased an 06 100 series and I have latitudes 275/60-18 currently and need new tires. I would like to have the Michelin A/T 2 but it's not available in the stock size. I don't won't hurt MPG and Power so I though about downsizing instead of upsizing to a P265/60-18 which is half inch smaller in diameter and narrower noticeably side by side. Does anyone have any experience with doing this? any suggestions? Thanks!