When I confronted the dealer he admitted it was an import was no different to a UK car. I checked with my insurance company and they were fine with it being an import and as it was made in the EU they said I didn't even need to bother telling them! (that was Admiral). So after that I agreed to pick the car up a couple of days later thinking it was fine.
If i am reading this right then you knew it was an import before you actually took delivery from the dealer?
If that is the case then i doubt you will get anything. You took delivery of the car, were happy with the price you were paying, you knew that it was an import, you saw the car and the specification, so i don't understand what you have to be unhappy about? What does the V5C say with regards to registration date, etc?
If it bothered you then you could have rightfully backed out of the deal before taking delivery?
All my opinion obviously, but also when you approach a dealer you might want to have an idea of what you want to achieve.