A mate of mine has the SC 4.2 and it's been spot on for the 2yrs he's had it. Only issue he's had was a stone through one of the rads. He's poly-bushed the whole thing and it made a massive difference.

He's thinking of selling it for a newer one. I've used it a few times while he's been working away and it's not as thirsty as you'd expect if you take it easy. Managed the dizzy heights of 22mpg on my commute but it'll usually do 16-20 although I have seen it at 10ish when you need to nip on.