When Elon Musk unveiled Tesla's second master plan, the $35,000 Model 3 represented the price floor. It wasn't set in stone, but you couldn't realistically expect more. However, the dream of a truly affordable Tesla EV just got a little more tangible. When tech YouTuber Marques Brownlee asked Musk in an interview about room for a lower-cost Tesla, the executive estimated that his company could build a $25,000 car in about three years "if we work really hard." This wasn't a promise of a car at that price point, to be clear, but Musk saw the vehicle as possible through a combination of both technical achievements and economies of scale.