Tesla Motors, already a big name in the burgeoning market for electric cars, plans to debut its Model S in 2012. In the second quarter, Tesla released the CAD data to external suppliers, said Elon Musk, CEO of Tesla Motor. In addition, Tesla entered into a strategic relationship with Toyota, enabling the two companies to cooperate in the development of electric vehicles. Already, Tesla is delivering prototypes of an electric power train for Toyota's RAV4, he said. And Toyota invested $50 million in Tesla, which filed its initial public offering in July 2010.