tried unplugging MAF today and car was flat as opps.
plugged back in car has nothing below 2000 revs but above that it does go well if you ring it's neck. i reckon my dad pootles about in it judging by the clouds of black smoke i had from exhaust. The speedo moves round at quite a rate when giving it some. I thought all must be ok if still pulling up hill at 90 ish (on private road....

)
one thing i noticed is it's very easy revving. very eager but massive turbo lag.
Convinced him to try some forte diesel additive and give it some stick now and then