mikeford, go the leather mate. If you got kids, its easier to keep clean (like Mondie said). And it looks a hell of a lot better than the cloth. I plan to worship my car when I get it, and see rubbing oil into those warm charcoal seats as a pleasure, not a chore. It will also give you more resale value in the future. The 18's look the part, and don't get me wrong I love them. Much rather them over the 17's, they just suit this car better. But theres the money factor, ya see? - The actual tyre is no bigger in diametre or width than the 17's, its actually only the rim. The tyres are different of course, lower profile to fit with the rims. Most of us can't tell the difference in performance really, so whats the point? At the end of the day, the tyres are an ongoing cost, and low profile performance ones to fit 18's aint cheap! If you must go cloth, may I suggest u get the Plexis Grey & Carbon. I reckon it looks the best & most classy outta all the cloth seats. Both choices are pretty much based on look - so will it be interior for all your mates 2 see, or exterior for all to see? I was also faced by the same choice as you, and at the end of the day, I picked leather.