Scion xB Wheels & Tires
I just had to post these pix - especially the one with both an 18" and a 15" wheel - the difference appears dramatic.
I swapped TRD 18" (18"x7.5") w/Pirelli P215/35R18 with MB Mesh-X 15" (15"x6.5") w/Falken ZE-612 P185/60R15 (stock size tires).
I had to do this to improve the ride, my family...