Love my Speed 7.
I can fold it with trunk, tail lights and speedo in place.
The headlight has to be removed, so I got one with a quick release.
I visited two shops that had folders. Neither were sure how their bikes folded.
Thanks to my Masters Degree in Mechanical Engineering, it was easy to figure out.
I'm not sure where you live. I have a hilly commute, and use all seven gears.
Be sure you ride it first. It has a different feel than a traditional bike, but it's very easy to get used to. The Dahon a lot whippier than my Cannondale MTB!