Importing a car from the USA

Has anyone done this before? I'm wondering what the approximate price is? I Googled companies that provide this service but none give me a 100% final price.

Problem here is the VRT on the car, US makes tend to have big engines so you get screwed on VRT

Boards.ie is probably a better place to get answers see link for example
http://www.boards.ie/vbulletin/showthread.php?t=2055061189