http://ir.tesla.com/static-files/7235e525-db16-470c-8dce-9ec...
Also, gross margin is literally margin after cost of goods. Doesn't include SG&A expense.
The statement given is ex ZEV and stock based comp, not ex ZEV/GHG and Services/Other. ZEV/GHG accounted for ~2% of margin in the first half of 2018 while Services/Other accounted for a little over 5%. Check the 10-Qs.
> Also, gross margin is literally margin after cost of goods. Doesn't include SG&A expense.
Most OEMs use the delta between the retail price and the bulk invoice including cost of stores to calculate their margin.
I have no idea what your last statement means. There is US Accounting definition of what gross margin is and it is Revenue - Cost of Goods. Other expenses such as compensation, stores, are part of operational expense and it included in net income.