Point of clarification / history...We do not know for certain if the Model 3 Performance version will be built first or not, as far as I know. But since the first cars will be RWD, I assume they will not be the Performance version since on the S/X that means Dual Motors. But the Model 3 could be different...
For Model S, the first Performance cars were RWD. For Model X, there were no RWD cars. TBA for M3.