Quite liked the series at the time, although it never was hugely popular and expensive to buy with depreciation like falling masonry. F type is much more glamorous.
They became bargains like a lot of high end German stuff, when the mpg and parts put a lot of people off (mate at work had a 10 year old Merc CL500 at the time best offer was £500, couldn't even give it away). There were a lot of scabby 8 series's bought by people as a cheap car and neglected not that long ago. Mike Brewer and Ed China did an episode looking for a car that wasn't a money pit. Watch for engine wear and if there's diff noise a replacement rear pinion can be hard to source.
Nice car, but I'd go for a 6 series or the 3.0 CS if I had an itch for a BMW