HELP: CPO 85 or New 75D?

[gangzoom]

I realized that the whole time, I had WAY more battery level left than in my 60. 85 / 60 = 1.41, so 41% more than the 60. That works out to a huge amount, though, in terms of distance:

But this isn't true, the real usable battery capacity difference between a 60D and 85D is only about 15kWh, so around 25%.

If your desperate for the extra range why not just pay to upgrade your 60D to a 75D, which will give you 72kWh, only 5kWh less than a 85D??

That option is far cheaper than changing cars.

Tesla’s hacked Battery Management System exposes the real usable capacity of its battery packs