The series development process of the BMW i7 is entering its final phase with the car undergoing a demanding test programme in extreme road and weather conditions.

During so-called hot-region testing on tracks and public roads all over the world, the development engineers primarily verify the performance and reliability of the electric motors, the all-wheel drive and the high-voltage battery when being exposed to maximum stress from high temperatures, unpaved roads, dust and large differences in altitude. 

Read the full story at timesmotors.com

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