Are the wheels on the 2012 Prius V symmetrical? The spoke pattern appears not, which would affect the pattern of rotation. Tires that are directionally asymmetrical generally have an arrow on them indicating the rolling orientation ... this necessitates a front-to-back rotation pattern, not side-to side. I suppose that if your tires are symmetrical and the wheels are not, it is conceivable that the tires could be re-mounted on rims from the other side. Hmmm. Do the wheels have such an arrow?