the new ds3 is not shockingly interesting, but citroen deserves credit for bringing out a premium small car rather than going for a retro look.
the old ds was a very interesting car... i recently spotted on at an oldtimer meeting and noticed an interesting detail
just ahead of the rear tires there was something that looked like a mudflap...
now if this was a new car i'd think it was an aero device right away, but if it is that the ds was way ahead of it's time.
also note this is a late model from the 70's with faired headlights
the picture you show probably is a promotional picture of the time, and it still does a good job of showing just how pretty the car really was. also i believe the underside of the ds was pretty much smooth, nothing compared to the average car today