Tesla was still struggling back in 2007 and needed new sources of income. Costs for the Roadster, priced at $109,000, soared to $140,000. Musk asked Tesla CTO JB Straubel to build a Smart Car powered by a Tesla battery to show to Daimler executives. Straubel warned that he'd have to pull engineers from working on the Roadster, but Musk insisted. It paid off when the Smart Car was unveiled, and Tesla won a contract to supply Daimler with battery packs and also secured a $50 million investment.