I'm hoping to drop on a L322 before the end of the summer and went to look at a 5.0l supercharged yesterday. The condition was pretty good, I need to go back for a longer look and listen/drive but it is quite leggy on nearly 160k miles. At what point does miles catch up with condition when considering buying on the basis of things wearing out at a scary rate no matter how well its looked after? Onto my 2nd FFRR, this time an L405 5.0L SC AB in SVO Palette black.

You missed out maintenance - I’d put that in between condition and mileage

Regular servicing and preventative maintenance count for a lot.

I also look for little indicators like 4 matching premium tyres as an indicator - 4 odd cheapo tyres is a huge red light etc.

Good point, I need to look at the records. The mot history doesn't show a trait of minor issues going unaddressed, the dealer has replaced all tyres for new conti grabbers. Onto my 2nd FFRR, this time an L405 5.0L SC AB in SVO Palette black.

A lot will depend on where the mileage was done, 80,000 round London 'v' 180,000 on the motorway, I'll take the motorway every time. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6