So it is �6,500 to upgrade.

And a new V6 is �11k, or probably around �9500-10000 after some discount from your dealer.

Maybe it is better to just buy new and sell the 861v4 privately??

I bet you could still get nearly �5k for it, maybe more?? You could probably change from around �4k if you bargain hard?

No Darling, I've had it months!