The new car will be an electric version of the existing Rapide sedan Aston Martin are known for making some of the most beautiful and powerful cars around, but they’re not famed for their fuel efficiency. The company’s looking to change that soon, with plans to release a completely electric car based on the petrol-powered Aston Martin Rapide Sedan at some point in the next two years. Speaking to Automotive News, Aston Martin CEO Andy…