Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation. To get this in your inbox, sign up here for free — just click TechCrunch Mobility ! Tesla CEO Elon Musk has spent months — years? — trying to position his company as something more than just a maker of electric vehicles. When Tesla acquired Solar City in 2016, he (and his comms team) pitched it as a sustainable energy company. Over the past year, he has pushed the idea of Tesla as an AI