In the development of the Cayenne Electric, Porsche is relying more than ever on digital testing. But the human factor is still indispensable: during final test drives, engineers push the SUV to its limits – in the freezing cold and scorching heat.In the development of the Cayenne Electric, Porsche is relying more than ever on digital testing. But the human factor is still indispensable: during final test drives, engineers push the SUV to its limits – in the freezing cold and scorching heat.