Automatic Doors

Ok, I'm not sure if this is the right place for this thread but I'll try. I'm sure some of you guys know about the Mercedes S series doors. I'm not sure if they still have it on this current one but the previous one had these doors that you would just pull them in a litle and they would shut themselves. Well, I got this Infinity FX and it has that feature on the trunk but not on doors :banghead: . I've been looking all over the place for that but I just couldn't find anything about it. If any of you knows where I can get it custom made please let me know.

Thanks