I have owned my 126 Bis for almost 4 years now and I have yet to experience a negative response from the public. Mostly, people are indifferent (which is good for my part) but the car definitely attracts attention, smiles and the thumbs up. I had a situation where I had to stop, as one does, to let people cross the pedestrian crossing. Oddly, the pedestrians stopped and hand signalled me to go ahead, and I did, despite my insistence for them to cross.
My friends think I am absolute bonkers for buying one. Little do they know, I have another 126!! Bottomline, I just love the car and just enjoy driving it and as Bis13 alluded to, a bit mad as well for owning one.