The basic difficulty with Imports is that they will have different spec to UK-sourced cars.
In the first instance this mean that it can be difficult to compare prices with local cars of same age, unless you know for fact what the spec differences are.
The second potential issue is availability of some spare parts. This is something I have encountered in the past with Imports. While most parts are the same as UK cars, you do get the odd part that isn't (usually trim bits) and then it's special order from the Continent etc.
The third issue is that if you do not intend to keep it for very long, then come sell time it may difficult to shift, or at any rate it may not get local UK car price. Some people do not like Imports, while others will only buy them at bargain price.
In short, you may have no issue at all with the car or price, the main difficulty is the general uncertainty given the above.