When manufacturers develop new powertrains, they frequently test them in the most extreme conditions on Earth. For example, the all-electric Rolls Royce Spectre was subjected to temperatures as low as -40F (-40C) and as high as 122F (50C), so engineers could determine how its range would hold up in extremes. This harsh-climate exposure is crucial for BEVs, as batteries lose a lot of efficiency in freezing or scorching temperatures.
