I bought my zed from a dealer and it was the 2nd car ive ever bought from a dealer. The last car I bought I managed to knock about 3 grand off the window price with a lot of haggling. But this time around the Nissan dealer would not budge a penny. In the end I paid the full window price but got 6 months road tax (260quid ish) and a fresh MOT thrown into the deal. The dealer had already forked out for a full P3 service, alloy wheels refurbished and the front bumper re-sprayed to remove all the stone chips, so they had invested a bit of cash in the car.
Not only that, apparently they had another buyer snapping at the door, so they knew if I didnt buy it the other guy probably would.
Before I bought this zed, I did see another one at a different car dealer and made them an offer - but once again, they refused to knock anything off that one. The only thing they offered was 6 months road tax, so I walked away.
It doesnt hurt to try though!