It has been called a Google-powered all-electric Tesla killer. Polestar 2 and Volvo Cars Road Show lands at Pier 35 in San Francisco this weekend. “A brand offshoot from Volvo’s original Polestar hybrid vehicle, the Polestar 2 will be the Swedish-Chinese carmaker’s first 100% electric vehicle, described by the company as “an avant-garde 5-door fastback,…