AFAIK 93 kWh is the total capacity.
If you get the 21 inch wheels with 265 tires, it drops to 325 (and the Taycan has even wider tires). And in practice people get less than that. Similarly, the Model 3 P+ with the 20 inch wheels gets nowhere near the rated 310 miles in practice.
Point taken on the battery size, but it's only 7% smaller yet 27% less range. What's that about?
Agree on range differences vs real world, but I noticed the Taycan has 5 wheel options from 20 to 21". So I have to assume not all of those wheels get the "full" range with the Taycan either.