I fit well in my Mk1 MR2 once I did some tall man mods (6'3"). With a custom seat mount, Sparco bucket and a dished steering wheel with extension I fit perfect with a few inches above my head. Can even wear a helmet in it no problem.
Little bit of miss information about the fuel eco stuff. More modern engines can get more power with less air and less fuel because of combustion improvements. Things like intake and exhaust VVT improve combustion efficiency and can reduce pumping losses. I do agree that the way most OEMs turn there FI cars allow for minimum boost in EPA mode driving which is why they don't deliver on their EPA MPG. Also I can assure you that there are somes OEMs that are not cheating the system even though the system is setup to allow if easily.