6 months update (4k miles) - completely drama free.
No surprise discoveries, car running great. Not done anything else to it after the initial purchase fix ups covered in the initial post.
MPG around town steady mid 30's, any motorway run longer than 30 minutes I'm seeing 50-55 mpg.
Played with the self driving tech - most of it is bollox. Radar cruise incredibly good - also liking the blind spot detection & junction radar (brilliant for reversing off the drive).
Best parking beepers I've ever had too - display seems to cover a full 360 around the car with what looks like 20+ sensors (no idea how that's done).
Becoming a fan of the perfume ioniser thing too - smells nice after a trip to the tip, clears the stench in 2 minutes flat.
Boring - but decent.