So, this is kind of a goofy question, but I'll be swapping my 21s for 19s and I THINK I can cart the 19s there inside the car and come home with the 21s (seats folded of course), but figured I would double check with those of you that routinely do this swap in winter/summer etc. I do have the frunk (RWD) as a possible option too, but the inside is likely big enough - correct?