i put the dunlop sport signature on my car this past summer. I used the 245/45-17s. They have great traction and rarely break loose when it is wet. If you are running these for the winter, even a 235 width may mess with snow handling, so stay away from the 245s. And that tire is only available in 245 with a load rating of EL or something, meaning heavy duty, and your ride comfort is somewhat harshened by that tire strength. I have mine shipped from tire rack to one of their approved installers, who do a great job with mounting and road force balancing. Not sure how close you are to an installer, but check it out when you order from tire rack by looking for that feature along with inputing your zip code.