Both posts above are spot on the money. It's been for sale since I started looking last September (and probably before that!). IIRC, it was originally listed at either £12500 or £12995, either way, overpriced as anything and now they're stuck with it by the looks of things.

If it's what you want, lowball them on it at like £8,500. You'll probably be the only interest they have in it. Then get a power upgrade from Daron @TMC, probably better value for money than an SS kit. Personally, if you don't have to worry about trade-in prices or finance, I'd opt for Will's red AGP SS, looks the balls!
In regards to the handling, putting sports mode on makes it heavier and gives it more feeling and involvement to drive. Without it, it makes you feel a bit disengaged from the car; but I live with it off probably 80% of the time. I don't find it too bad over the roads, but it depends on what you have as a comparison. Coming from a ZR to an AGP SS with Sabelts... I think it's amazingly good. If you were coming from an executive saloon, you probably wouldn't be impressed. Test drive it and find out yourself, the best opinion is the one you form yourself.
