I've seen the European version on roads and the UK flag symbolics was obvious to me, haven't noticed it's an arrow as well... or perhaps the EU version has sepa

I've seen the European version on roads and the UK flag symbolics was obvious to me, haven't noticed it's an arrow as well... or perhaps the EU version has separate orange light panel for blinkers? Overall it's BMW, their trademark is to be show off and obnoxious.