I recently purchased an after-market set of tires/rims from one of the fine members here: 215/40-17 up front and 265/35-18 on the rear. It should surprise no one that I am now looking for new tires, particularly rears. I am looking primarily for quiet smooth riding tires, as I do no track time and spend most of my drive time (for now) crossing expansion joints on the Los Angeles freeway system (dry weather only). As the tire sizes do not come on your garden variety car, I trust that any available tire will have "decent" performance parameters. What tires best fit this description?