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