Every now and then, for want of anything better to do, I sit back and muse over the cars I have owned. The most comfortable, without a shadow of doubt was the 1964 Wolseley 6/110 I bought in 1971 for £295. The front seats were big, soft, leather armchairs with armrests and the suspension made just about any road feel like smooth tarmac (quite a feat in some places). It had two drawbacks - the early power steering was VERY sensitive at anything over about 50 and the consumption - on a good day -was 13mpg. Let the air filters get dirty and that was down to 11mpg - and in town 9mpg! The worst was the 1500 Maxi - dead broke at the time - paying for the divorce from my first wife - its predecessor, a rather nice V4 Corsair expired on a motorway and had to be replace PDQ - and the Maxi was all that I could afford locally. Awful device - absolutely gutless.
Overall for the combination of ride comfort, space and performance, my best was probably a 2 litre Mazda 626 auto in the mid 90s. If it wasn't for its - by comparison - slightly harsh ride, very noticeable on the tatty roads around here - the present Mondeo would run it very close, perhaps even edge it out.
Mike