Ever since superstar engineer Gordon Murray left McLaren after years spent heading the company's motorsports efforts, designing the McLaren F1 supercar and, later, building the Mercedes-Benz SLR McLaren supercar, he has been hard at work designing two novel city cars. The T.25, powered by a three-cylinder petrol engine, and the T.27, an electric vehicle, have been seen in prototype forms a handful of times over the past few years, but Murray has announced on his blog that his company, Gordon Murray Design, has sold the T.25/T.27 concept to an unnamed customer who will begin producing the cars in 2016.