I do around 270 miles every fortnight from a brimmed tank, gauge always ends up in the middle of the 1/4 and red marks, roughly works out around 25-27 mpg unless i thrash it, if you go for one beware i had to buy lowering springs£112 set of 4, as my o/s/f spring snapped and genuine ford are £75 each with staff discount!! ( i work for quickco sunderland, our manchester base is a ford parts dealer) and the ford ones were on a 5 day back order, which can easily turn into 5months, i need my car for work so needed it sorted asap, road tax is also £134.50 for 6months. check for a timing belt change too as the recommended interval is 100k miles but the tensioners or tensioner bolts seem a weak point mines only on 71,000 miles and i did full timing belt and tensioner/idler change october/november last year. Gotta say they sound great when you put your foot down a bit
As for qashqai we are still shifting loads of shockers for these although the turbo problems seem to have stopped now

What price is the one you looked at? been thinking of selling mine (£2300 o.n.o.) standard spec 5 door in grey,half leather, aircon works well, allround e/w, rcl, global windows set up aswell as anti hijack locking(can do this on most focus though)tax end aug, mot til march 2012, hpi clear, mileage verified and double checked mot history on vosa, near full history,only one stamp missing, been looking out for a bigger diesel but the mondeo tdci`s seem rubbish so may go for a older tddi