Well I spec'd up my ideal car not going mad on the options and sent it off to the sales girl/lady as she was keen to give me a quote in the same format as above ...
£90,267 List Price
less £ 6,000 centre contribution
less £20,000 customer deposit
£73,639 balance to pay
£824.75 per month for 48 months
£34,176 final payment on month 49
An interesting exercise and I look forward to getting the car for a play for the day but can't see me living the dream of speccing my own ... just too pricey for my austere northern blood

The combined monthly payment and depreciation would far out strip my mortgage payment which just ain't going to happen. A C7 is certainly in my future just not for a few years. I'll dampen the sales girl/ladies enthusiasm on Monday and hope they let me still have the demonstrator for the day.
On the plus side booked myself into MRC to give my C6 a new spring of life which should keep me interested for a 18 months at least.
Thanks for all the input

- greatly appreciated and rest assured I'll be admiring the front end of your C7's should we ever pass.
Rich.
The Present ...
C7 RS6 Avant - Estoril Blue - everything bar B&O - Akrapovic only upgrade (... so far)
The Past ...
C6 RS6 Saloon - Phantom Black - lots of factory extras but no tuning.
C5 RS6 Saloon - Daytona with black Interior - Full Milltek with 100 cpsi cats - AMD Remap - Bilstein PSS9 Coilovers - MTM Bimoto's - Phaeton Brake Upgrade - RNS-E + Bluetooth + Multi-media player + Phatbox
911 (996) Turbo - X50 - Aerokit - PCCB