I'm 6'1" 200 lbs. and can comfortably sit behind myself. I have 2 inches of legroom from my knees to the back of the driver's seat and probably 1 1/2 to 2 inches of headroom. We also have my son's forward-facing car seat in the rear passenger seat and I have a ton of legroom sitting in the front passenger seat. Hope this helps.
185lbs and about 6ft. With my seat in front the way I drive, I can sit in the back with no problems. Even for longer trips, there is a good amount of head, shoulder and leg room. My only complaint to mazda is that the rear seats don't slide fore/aft and the seatbacks don't tilt. Almost every other vehicle in this class has such seats. The rear seats are tilted ever so slightly (maybe 3 or 5°) But if mazda just made it so they came forward to a straight 90°, that would be better than nothing. You'd get slightly better storage in the cargo area.
