>> The thing's insured now, and IME swapping cars half way through
>>> insurance policies is a gip. There's a bit of a boost leak, which may
>>> account for some of it - I was under the impression that these things
>>> never dipped under 40mpg no matter how much beans you gave it. At the
>>> minute my MK2 is cheaper to fuel than this thing by about a halfpenny a >>> mile...
>
> It's about half a ton lighter. Heavy stuff is rarely fuel efficient.
Especially if you're changing speed a lot - the HDI will win on a long cruise, but hefting 1.5ton plus of car up to speed all the time will hurt no matter what magic engine you've got.
cheers, clive