Don't know them. The sense of any transaction like this depends on exchange rates. Sterling is now way down, but the Yen is down too. Not worth it for any ordinary car. Would have to be something special. The Japanese Shaken tests at 3,5,7,8,9 and 10 years put most older Japanese cars off the road, and that's when they get exported to the UK, New Zealand and Australia. So these are not pristine, low mileage cars. They are usually MoT failures.