My brother have recently got a new EV Mini and lane assist is provided free for a few months after which he has to subscribe if he wants to keep it (dirrferent rates for yearly or single one-off purchase). His comment from a recent motorway drive is "it doesn't like spray off the road" - kept dropping out as it was a rainy day.I do find the "lane assist" feature annoying
mostly because it mistakes some road marking for lane marking and wants me to move left/right
and in the wet then a shiny bit of tarmac can have the same effect
I leave it switched on because it can occasionally be useful - it can be switched off permanently by a button by the door
Ian