Realistically I think £15,250 is a fair price for trade.
Privately they are being advertised for £16.5k to £17k
These prices are obviously open to negotiation as a private seller.
You would like to think that you would achieve £16k for a cash sale.
So £750 down on that sounds about right for a traders offer.
Personally I wouldn't trade my
K1 for a Scooby as my mate has a limited edition GB270 (I think that's what it's called) and I have driven it.
Wasn't overly impressed and felt a little erm....slow?
Saying that, I have driven a PPP 315 bhp Sti and that was quick but just didn't tick all my boxes. Felt underwhelmed driving it.
Good luck with whatever you choose anyway