It's the run up to Christmas, the economy is still tits up, the A4 is now considered a rep mobile and has lost its cache unfortunately, it's hell to sell big cars etc. Cut your losses and get rid of it ASAP. £8k to £8.5k is all you'll get. Every day lost, more depreciation. Pity, it looks really nice and I feel for you.
I've not sold a car for years, I just hand mine over to younger members of my family in exchange for lots and lots of favours. However, this time, my GTI won't be given away, has got 20 people fighting over it and I'll get what I want for it. I wonder if the F30 will be as saleable in 2-3 years. Doubt it.
Superman F30 EBII 330d sDrive M Sport//Coral Red Hippo Hide Chairs.