Interested in this question too. Keep meaning to go by the Toyota dealer and measure the hatch opening. you need at least 30 inches in the vertical for a Williams (back glass folded down on base) and I think a Stern might be a bit more, so 31? I don't think the problem will be with the space between the wheel wells or length but could be wrong on that too. HA! sorry I wasn't more help but it's been something that has been on my mind too.