With my current car I can drive to the summer cottage and back with one tank. It's just carefree and convenient. With an i3, even when starting with full charge, one would have to tank about halfway each way.
It is hard for me to understand such design decisions. I have heard that in some countries the gasoline range must be less than electric range to secure some tax credit.
Edit:
Source: https://en.wikipedia.org/wiki/BMW_i3
REx 60 Ah: 116 km (72 mi), Total: 241 km (150 mi)
REx 94 Ah: 156 km (97 mi), Total: 290 km (180 mi)[12]