I'm trying to decide whether it's worthwhile to upgrade from a small (Q4) SUV to a medium (L) SUV for a Hertz rental. I'm mostly concerned about maximizing trunk/cargo space. Both options say room for 4 bags, but what's interesting is when I check their example models (Nissan Rogue for small, Chevy Equinox for medium) the Rogue actually reports having more cargo space. So I guess I'm wondering if there's any point to upgrading to medium SUV (granted, I know they are just example models)?