hi tenthplanet,
What strikes me first off is that you are willing to spend $2000 on a car worth $6K - from that fact alone, I'd suggest you sell it off there and close the finance deal leftover money and then find a car here.
In the costs you've currently estimated, have you included import tax and VAT ? there are rules which I can't quite remember right now, which will allow exemptions - but check to see if you qualify. Add on the cost of Shipping it here, insurance whilst in transit etc. If it does get here, or at that stage its landed, remember to add on I'd estimate around £250-500 getting the Car SVA (single vehicle approval) tested to make sure it meets UK road legal requirements. As it's left hand drive, remember it'll cost more to insure as well, factor in some engine modification work to allow 95 RON unleaded if the car won't automatically adjust. Lastly, remember a US spec Honda may not be serviceable fully here as certain parts may not be available - so factor in import costs of parts if needed later.
As you can probably tell and like I've mentioned previously here, it isn't really worth importing 'bread and butter' cars into the UK from the US. It's only 'interesting' US cars that usually make it over here and a Honda civic certainly isn't one of them! - Our 03 F150 Harley Davidson Anniversay Edition Truck does fall into that catagory but the flipside is they can be much more difficult to sell on as we found! (we've now decided to keep it !)
Put that $2K into paying off the finance - whatever is leftover that you owe them, speak to them to tell them you are leaving the country and will offer to pay them from here in order to repay the debt. Look into the get out clause of your contract and evalutate how much that penalty will be.
Credit indeed doesn't transfer from UK to USA and vice versa as many have previously posted, I think the companies are indeed the same but I think there's more to it in terms of data protection laws, what can and cant be exchanged between the two on an international basis etc (I could be wrong though)
Getting a car here is 'relatively' easy too, I've only ever done 'finance' by arranging a bank loan one time that I paid off within 30 months instead of the 48 they wanted me to, when you get here look at publications such as What Car? and Top Gear etc and have a look through their advice on all the financing options etc.
There's more to each point above and some of it may be innacurate but it's as much as I know currently - have a little research into the points and find out for sure
hope this helps!
DtM! West London & Slough UK!