I have to throw in my 2 cents, being 1.95m tall (6'5") and right at 240lbs. I'm considered "Average" build, I guess you could say. A few years back, I had trouble fitting in a giant Ford F-250 crew cab. There was NO way I was fitting in the back seat, and when it became my turn to drive, I couldn't make the seat lower enough so that my head wouldn't hit the ceiling.
I owned a 1991 Honda Civic hatch back. Not bad, but not that great, either. I had to lean the seat back so far that it basically eliminated a spot for someone to sit behind me.
...This has been the story of my life. Right now I drive an '02 Cadillac Deville. It fits perfectly; in fact, I have leg room to spare, and still can fit someone behind me in that car. I've driven many models of light pickup trucks and compact cars (Kia, Honda, Chevrolet, Toyota, Nissan, and Pontiac), and I have pretty much had to grin and bear "scrunching up" my legs to fit under the steering wheel. Heck, even a lot of Ford Mustang models give me trouble, as do "mid-sized" cars like the Ford Taurus or Lexus ES300.
Personally, I'm waiting for the time to come for larger cars to start getting greater fuel efficiency. If I could have a car like a Chevy Impala or a Cadillac Deville that got 35+ miles to the gallon, I'd totally be there.