I brought my first 1970 plus 8 for £3000 in 1983 and sold it for £6500 3 years later. I replaced that car with a 1977 plus 8 for £6250 and sold it 12 years ago for £17,500. I brought my third plus 8 for £12,000 and sold it last year for £27,000. I now have a new plus 8 and am expecting to eventually loose money on a Morgan for the first time!
