I was in a similar situation. I drive 22k mi a year and consumption is a big factor. I had the 6GC and wouldn't even consider it anymore do to the large size yet lack of interior space. I was between an a7 tdi and an s85 and I chose s85. But then I was 2 month into my wait when I got a call saying some options were discontinued and I would need to wait an additional month for the vehicle with no given incentives. I cancelled and bought an f80
I'm happy for now, but I'm thinking I'll jump into a tesla 70d in about a year.