Elon Musk, CEO of TeslaBeck Diefenbach | ReutersTesla CEO Elon Musk addressed a theoretical question about whether or not Tesla would be game for a merger with one of the incumbent car companies.”I think we’re definitely not going to launch a hostile takeover,” Musk told Axel Springer CEO Mathias Döpfner on Tuesday during a live event streamed to YouTube. Döpfner pressed Musk if he’s consider a friendly takeover. “If somebody said, ‘hey, we think it would be a good idea to merge with Tesla,’ we’d certainly have that conversation. But we don’t want it to be a hostile takeover situation,” Musk replied.The scenario was purely theoretical.Tesla currently needs its capital for other things, like its battery plans, mining, and manufacturing advances that it has said will lead to, among other things, lower vehicle prices.In a letter to employees on Tuesday, for example, Musk highlighted the importance of controlling costs.”…in order to make our cars affordable, we have to get smarter about how we spend money,” Musk said. “This is a tough Game of Pennies, requiring thousands of good ideas to improve part cost, a factory process, or simplify the design while increasing quality and capabilities. A great idea would be one that saves $5, but the vast majority are $0.50 here or $0.20 there. In order to make the electric revolution happen, we must make electric cars, stationary batteries and solar affordable to all.”Musk, known for being overly optimistic, said in September, for example, that Tesla is confident it can make a $25,000 fully autonomous vehicle in three years. “It’s not like Tesla’s profitability is crazy high,” he said at the time. “It’s not like we’re minting money. Our valuation makes it seem like we are, but we’re not.”The full interview with Musk is below.Subscribe to CNBC on YouTube. CNBC’s Lora Kolodny contributed to this report.