Submitted by jf_dou on February 11, 2015
only my 2 cents.Mercedes GT AMG dumped the gull wing door design in the new release. I guess the problem/difficulty of engineering could be:
1) roof strength. because this kind of door design discontinued the rail from A pillar to C pillar, so the strength of roof can be compromised.
2) sealing problem. the door design needs to be water-proof(no leaking) and air-tight(sort of). It will be a challenge for manufacturing. high accuracy and repeatability are required. Deloreans has these problems before, but 30-40years later the engineering has improved a lot, but still needs some struggling.
3) passenger escaping method when top side down. Mercedes GT old version has a explosive device to break the hinges when the car is flipped over, then the passenger can get out the car. I don't know model X has this kind thing or not.
4) height of garage ceiling is a restriction. Elon's garage is very spacious in the video of debut ceremony, but not all the same.