not necessarily true, as when i was buying my v35, there was 1 dealer who had them for $41,999 listed on the yard price, but i said to him i only have $31,000, and he said lets go inside you can have it for that much. this was around September last year right before all these markets and the yen crashed. imo, the dealer got the cars in cheaper than usual and hiked the price up. So it pays to know how much they are ACTUALLY worth via an import first, then add on GST overheads, dealer costs, wages etc. and you kind of get a rough price of how much the car was pay for in japan.
These days however the v35's are worth much more to bring in because of the poor exchange rate. So there is less margin on the cars being brought in, meaning less to haggle.