I ended up with E350 (W212) - nice and pokey, jumpy auto box (as someone else said makes you behave like a nodding donkey, much more fragile than LS 400, boot right shape to get a bike in (LS 400 was larger but not as deep). Seats as comfortable as a Scottish Kirk. For sure it needs more repairs, but parts do seem cheaper. Seems as fast and as quite as LS 400, and not so heavy on tyres (possibly)
I did think of S-class, borrowed a mates, but still seemed like a pretender to a Lexus Limo.
Son just bought a 2013 Mazda 3 impressive little car, pretty quite not too many fancy gadgets so maybe when my time for larger cars expires something like a Mazda will do it.