The salesman asked me the same thing, re: an SEL... but I want the upgraded Sony stereo (so little aftermarket audio for the Edge), which limits me to the Limited or Sport trims. The Limited IS available with standard 18s... but I prefer the look of the 20s... just wish they were real chrome, & not plastic covers. Drove both again last night... was happy to see that MFT recognized my Zune. Took a while to build the index, but cover art & everything went right to the screen... Yay! I found the difference in ride quality between the 20s & 22s to be negligible... It was an interesting contrast... the Sport had ONE option (nav)... the Limited had EVERY option (pkg. 302A), but only $2500 difference in price. I thought the difference in power between the 3.5L & 3.7L was negligible as well, so will probably come down to whichever I can get the best deal on (Sport/Limited). The salesman seemed to indicate he could get me a better deal on the limited... we shall see.