Which luxury car is the wisest financial decision - Ferrari, Bentley or Aston Martin?

In early 2013, I bought a new BMW 640d M Sport Gran Coupe. I part exchanged it two years later for a new BMW M4. That cost me £32,000 in depreciation. I'm now thinking of selling my M4 at the three year point and expect a similar amount of depreciation. The total in five years will be about £64,000. I want to minimise the cost of ownership with my next purchase and have a short list of four second hand vehicles for my budget of £80,000. The options are a low mileage Aston Martin Virage, low mileage Bentley Continental GT, Ferrari California or, at a push, high mileage Ferrari F430. The BMW have cost very little in servicing or road tax. Including depreciation, cost of servicing and road tax - could you advise which might be best in terms of total cost of ownership? I drive about 4000 miles per year. Feel free to suggest an alternative car if you can.
Massive risk factor and high servicing costs with the Aston and the Ferrari, but recently Ferrari have been holding their prices quite well. A California makes more sense than a 430. Why not a Porsche 911? Obviously you will amortise your M4 more effectively by keeping it for another year or two, but if you're fed up with it that isn't an option.
Answered by Honest John on

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