More info I've emailed to potential buyer:
It has tax til June 2014, which I'll include if I get £400.
For an idea of fuel economy, it did 170 miles last weekend on £25 of diesel, and that was with bikes on the carrier and fully laden inside.
I'm trying to think if there's anything else I should have mentioned on the ad, the only thing that comes to mind is a message saying 'the diesel additive is at minimal level' - it's been like it for 3 years, through 3 mot's, and is not affecting the emissions. The mechanic at my local garage said to ignore it, as it is probably a faulty sensor - it doesn't affect performance or emissions or fuel economy.
Everything else is good, climate control works nicely, electric windows, central locking, stereo.
It has to go by the weekend due to new car, seems a shame to take it to the scrapyard...