Hello to you too! It's great to see a fellow BOC owner and driver! From what I read up on them they're quite rare! According to HowManyAreLeft? there are only about 500 of the original 1000 produced still registered! And of that less than 200 insured and actually driving on the road! I have yet to see another fellow BOC driver and mini in person, boy would that be a treat :)
Yes I've only ever seen others on the L2B, never just on my day to day travels.
Yours looks lovely, much better than mine was when I got it before all the repair work, well actually perhaps better than mine AFTER it had all the repair work!