Over 2,500 battery swap stations across China can replace a depleted NIO battery in under five minutes — faster than filling a gas tank. That infrastructure, which NIO built entirely with its own capital, is the physical foundation of a business model that no other electric vehicle manufacturer has replicated at scale. NIO generated $9.26 billion in FY2024 revenue on that infrastructure, but the swap network is not just a convenience feature. It is the reason NIO's Battery as a Service subscription model exists, and BaaS is the reason NIO can sell premium electric vehicles at prices that reduce the buyer's upfront commitment by removing the most expensive component. William Li and Lihong Qin founded NIO in Shanghai in 2014, during the first wave of Chinese EV enthusiasm. The early product was a hypercar — the EP9, unveiled in 2016, set lap records at the Nürburgring — not because hypercar sales would fund the company, but because a Nürburgring record created technical credibility that premium sedan buyers would require. The ES8 SUV launched in 2017 was the first volume product, targeting the same affluent Chinese consumer segment that was buying BMW 5 Series and Mercedes GLE SUVs. The 2019 crisis tested whether the company would survive. A major battery recall following fires in ES8 vehicles triggered customer confidence problems. The company burned through its capital reserves faster than expected. William Li personally negotiated a $1 billion rescue package from the Hefei municipal government, in exchange for relocating NIO's manufacturing operations to Hefei. The company survived. The swap network — which had seemed like an expensive indulgence before the crisis — became central to the company's post-crisis identity, providing a service differentiation that competitors who had dismissed the concept now found impossible to replicate quickly. The ONVO brand, launched in 2024 as a mass-market sub-brand, represents NIO's first serious attempt to compete outside the premium segment where it had built its reputation. ONVO vehicles are designed to be produced at higher volume with lower complexity, using the same swap network infrastructure that NIO has already deployed. The strategic logic is identical to Toyota's relationship between Lexus and the core Toyota brand: establish quality and margin credentials at the premium end, then extend distribution to higher-volume segments with shared infrastructure.