fast_eddie_72 wrote:
I'm no expert. Sounds like Javelin is very familiar with it. But I know it comes up in the Capri crowd from time to time and everyone seems to think there's something magical about 25 years that makes it pretty easy.
There is.
25 years or older: easy. All cars welcome. I've imported two cars that are over 25, one Canadian-market and one UK-market. I had a broker do the paperwork, but there were no import taxes or tariffs. Just the usual state taxes, like any used car. In both cases, I just drove the cars across the border (the UK car was registered in Canada at the time, not that this makes any difference at all) and dealt with paperwork later.
24 years and under: must be on the approved import list, and may require modification by a registered importer to meet standards - the modifications are listed on the paperwork for that particular model. This may be trivial, this may be very expensive.
It should be noted that the 25 year exemption does not apply to local emissions standards.
Shipping costs are going to depend on the car and the country it's coming from. Once they're on a ship, it's actually not that bad. Getting to and from the ports, now that can get spendy.
Canada has similar rules, but the cutoff is 15 years instead of 25. And there are special rules for importing cars from Canada. However, these special rules only apply to cars originally produced for the Canadian market. You can't bring a Skyline into Canada to "wash" the title and then bring it south of the border 
Square left in 50 caution ocean!