For decades the most prominent CR criterion for car reviews was whether a folded wheelchair would fit in the trunk.
Another good one I found is carsurvey.org, but I'm not sure how it'll hold up when (if not already) the marketing departments of car manufacturers swarm it.
The wheelchair metric seems a little more practical. My mother will soon have bought three cars using that as a filter. Or perhaps there's a built in assumption that any car capable of carrying a wheelchair can also carry golf clubs, I don't know.