British luxury automaker Rolls-Royce Motor Cars has shared the latest update regarding its upcoming all-electric Spectre, as it has endured winter testing in Sweden in temperatures as low as -40℃ (-40℉). With the completion of winter testing, Rolls-Royce has shared that the Spectre has now covered 25% of the 2.5 million planned test kilometers (~1.55 million miles), simulating 400 years of use on the new EV. More…