Hello,
you need to act very quickly and swift now. The following steps are (as far as I know) the most promising (but that doesn't need this will work any time):
1. File a police report. Don't let them turn you away; make them aware that this is organized crime, most likely from Romania.
2. Take a copy of that report to you uncle's bank and discuss the whole situation with them.
3. Make your uncle's bank get in touch with Lloyd's; if necessary have them fax the copy of the police report.
It might be that the missing column is sufficient to reverse the transaction; but I wouldn't count on it.
The site design was a sub-variant of this one:
http://escrow-fraud.com/index.php?page= ... layout=210As you can see this has been used so many times by now that there is no question about the fake nature.
I'm assuming the communication with the "seller" of the car included a story how he worked in the Czech republic for some time, bought the car there and was now forced to get back to the UK, but has trouble driving the car there (and also selling it) because of the steering wheel being on the left side? You might want to do a web search for a couple of phrases from the mails of the "seller" and you'll probably find numerous other examples. Make note of them and present them to the police if they question the fake nature of the deal.