There are no specific problems because a car is an import, if you get the right on its as good as a UK car.
Some have 17 inch wheels and no brembos.
Some have nice little options not available in the uk.
Check out the insurance situation, some companies dont understand them.
The specs are harder to understand compared to the UK car, lots of options makes it more difficult than the UK GT/nonGT.
JDMs can come with auto boxes if thats something you fancy.
Also check out radios and sat navs are compatible for over here.
They may well still be limited to 112 mph but that can be sorted.