The DMC-12 is what got me in to cars. Also, if you look on other forums (dare I say i-Supra) you'll see my plans of gullwing doors on an MkIII from when I was 14. This is why when I photoshopped this years ago:
there is a line down the center of the targa. As was the case then, I'm not going to try it any time soon. I will say that I havent given up thought yet though.
Scissor doors arent as efficient as others are. The first would be a sliding door a la minivan or a similar type where the door opened up to the interior completely but still stayed close to the chassis. The second most efficient I'd say is the "Dihedral Synchro-Helix" used by the Koenigseggs. This leaves my personal favorite, the gullwing at third. Afterwards are butterfly wing (SLR McLaren, Enzo, Toyota Sera), scissor, and suicide.
Gullwings are far simpler to install and maintain than the first two, and still quite unique with the only production cars having them being the 300SL gullwing, Bricklin SV-1, Autozam AZ-1, DMC-12, and the CLK GTR. I might be missing one or two, but I dont think I am.