A prevailing view today suggests that Tesla’s (TSLA) electric vehicle (EV) business is gradually losing its core status. The realities of slowing growth and intensifying competition have shifted investors’ focus more toward the future represented by robotaxis and humanoid robots. While this perspective is understandable, it is somewhat one-sided. The EV business may no longer be the sole star under the spotlight, but it is undoubtedly the entire stage and foundation that supports all of Tesla’s grand narratives.
Tesla’s electric vehicle business has successfully addressed early doubts regarding market viability, mass production capability, and growth potential. By 2025, its core value has shifted from merely proving electrification itself to powering a larger ecosystem. The robust and continuous cash flow generated by this business serves as the lifeline for the company’s other long-term, capital-intensive projects. Whether it’s the iteration of Full Self-Driving (FSD) technology, early pilot programs for robotaxis, the development of the Optimus humanoid robot, or the expansion of global factories, all ultimately rely on the funding provided by vehicle sales. Until autonomous driving and robotics technologies achieve self-sufficiency, a stable EV business is the critical line of defense preventing the company’s strategy from significantly slowing down or being forced to dilute equity.
Beyond financial support, Tesla’s vast fleet of electric vehicles itself serves as an indispensable physical platform for realizing its autonomous driving vision. Millions of vehicles globally continuously operate Tesla’s software systems. This large-scale hardware foundation not only gradually integrates users into Tesla’s ecosystem but also establishes a near-monopolistic advantage for the future low-cost, large-scale deployment of autonomous driving services. Compared to players like Waymo, which lack mass automotive manufacturing and distribution capabilities, or traditional automakers with shortcomings in software and data closed-loops, Tesla’s combination of vertical hardware-software integration and economies of scale is the fundamental reason its robotaxi business model is viable.
Viewing Tesla as a “layered company” helps in understanding its business logic. The foundational layer is the electric vehicle business, providing cash flow, manufacturing scale, and a globally deployed software-driven fleet. The middle layer is the autonomous driving business built upon this fleet—a potential high-margin mobility platform. The top layer is the robotics business, representing the long-term future with asymmetric growth potential. In this model, if the foundation is shaken, the upper-layer visions become unattainable. Therefore, although the growth narrative of the EV business might be less immediately captivating than AI and robotics, its importance has not diminished—solid profit margins now sustain the company’s strategic optionality and financial flexibility, ensuring it can continue investing in the future even when facing challenges.
For investors, the real risk may not lie in overestimating the long-term potential of robotaxis or Optimus, but in underestimating the fundamental role of the electric vehicle business that quietly underpins these visions. The reason Tesla can envision a future in mobility and automation more grandly than any other company is precisely based on the unique stage provided by its robust EV business. In other words, paying close attention to the healthy development of Tesla’s electric vehicle business in 2026 and beyond remains a crucial dimension for assessing the company’s long-term value.
