Looking at this concept in further detail, it appears BMW have have simply taken a fuel cell concept and rebranded it as a BEV. The clues:
1. Big *** grill, fuel cell needs a fair bit of cooling.
2. Blue accent lighting on the rear bumper where tailpipes would go. Blue to signify water expulsion.
3. Big engine bay, look at the amount of space from front of dash to front bumper.
4. Non fold down rear seats to accommodate hydrogen tank bump.
https://insideevs.com/bmw-inext-concept-revealed/
1. Big *** grill, fuel cell needs a fair bit of cooling.
2. Blue accent lighting on the rear bumper where tailpipes would go. Blue to signify water expulsion.
3. Big engine bay, look at the amount of space from front of dash to front bumper.
4. Non fold down rear seats to accommodate hydrogen tank bump.
https://insideevs.com/bmw-inext-concept-revealed/