Quote:
Originally Posted by ENINTY
It is actually for weight balance and moment of inertia chassis design purposes, and an added benefit is the battery is subject to much less vibration and temperature extremes. It's been a design philosphy of BMW for at least 35 years now.
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The battery location in the trunk vs front of the car isn't going to change the weight balance that much. Moving it back under the hood and putting a spare in the trunk would fix the balance problem. And fix the run flat problem.