Since there are no exhaust fumes exiting a BEV, how about a power window in the hatch glass so I can get better ventilation without resorting to A/C. Maybe it would be an aerodynamic engineers nightmare, not sure. But it would be a feature you wouldn't find on an ICE car since the Mercury Monterey of the 60's. The open air experience will remind me that "Economic Reality" never trumps "Environmental Reality" in the modern world.