I played around with various exposures with this, hoping perhaps for a slightly more fluid display of lights. However the traffic along here rarely flows freely and when I slowed down the exposure I gathered a lot of extra background light which lost the "at dusk" feel of the shot.

I think I expected too much of the E-P1 here; it really needed a camera with enhanced low light performance, a nice, fast lens and a tripod to pull this shot off the way I would have liked to.