I have a bunch of images from this artist's website, but I don't know their name since I can't read japanese. If anyone could figure it out, it would be appreciated.
In the second OP, "What's Up, People?" I believe we see L do this exact move. I'm no fighting expert, but it seems more like a tornado/roundhouse than the infamous Spin-Suzaku.
More disturbing to me is L using all those guns. (At least we're told in the companion volume that L is actually a rather skilled martial artist. Never mentions any weapons fire training.)