Polestar have teased their O2 roadster concept, an electric sports car set to become the brands new halo model. With only two cars in their line-up and the original Polestar 1 ending production, Polestar is set to increase their offerings across the range. With a couple of new Polestar models coming soon, the O2 is designed to replace the 1 as the high performance car at the top of the range.