I love my mates 560SEC Merc - 1989 on a 'G' plate, tight as a drum to drive and so comfortable. He bought it in 1993 with something like 8k miles on it, still only got about 40k on it today.
Lovely car, got a real soft spot for it. Not the best handling but ain't bad for big old barge, and not the fastest but definately one of THE nicest.