If you're not fussed about mpg get an old merc 5.5 litre 500bhp monster! Found one on eBay a couple of weeks ago that started out in life costing £104,000 and not 22 years on... Up for 4k!!! That's a lota car for the money, okay it's 22 odd years old, and it's a merc but a mate of mine at one has an old diesel merc and says the parts aren't too expensive!