Hello everyone
Embarrassed to report that remote park assist, which is where you can park the car remotely using your mobile phone is available in Continental Europe (Would be keen to hear if it can be done in UK using info below). Found this out reading some German colleagues who reported it was.
This would be in the top spec models like Takumi Design and if optioned as part of a pack, but the actual remote park function does not show up in the Lexus Link + app we have, which makes one believe it does not exist. Most of the tutorials on line featuring this show other Lexus models based in the US where it seems you can launch it from. Not in Europe (suppose for legal and liability reasons???)
You have to download a second app, called "Remote Park Europe" (seems to be part of Toyota Corp) which you then link your car via Bluetooth to your phone. I have tried it now a few times and it works and to be honest is mind blowing to witness. Especially in car of this price range.