Hardware Reality: BMW Starts Pre-Production of Neue Klasse i3 in Munich

BMW Group Plant Munich completed the first pre-series build of the all-electric i3 sedan this week, marking a critical hardware milestone for the automaker’s “Neue Klasse” platform. While competitors have recently scaled back electrification targets or delayed platform launches, BMW’s production schedule remains fixed. The Munich facility, which has operated since 1922, is now actively manufacturing the validation vehicles that will precede mass production in the second half of 2026.

The vehicles rolling off the line are not concepts. They represent the final manufacturing verification for the i3, a sedan sized to replace the current 3 Series. This development confirms the integration of BMW’s sixth-generation eDrive technology into an existing brownfield site, a complex logistical feat distinct from building a factory from scratch. According to Peter Weber, Director of BMW Group Plant Munich, the integration utilized a “digital twin” process to simulate assembly steps before physical tooling was installed, allowing the plant to maintain output of current ICE models during the transition.

Technical specifications for the platform are now physical realities rather than targets. The Neue Klasse architecture shifts BMW from 400-volt to 800-volt electrical systems, a move that directly impacts charging performance. The system supports high-power DC fast charging that can add 186 miles (300 km) of range in 10 minutes, addressing one of the primary friction points for fleet and private buyers.

The battery pack introduces a structural change as well. BMW has discarded the prismatic cell format used in the i4 and iX in favor of round, cylindrical cells. These “Gen6” cells measure 46 millimeters in diameter and come in two heights—95mm for sedans like the i3 and 120mm for SUVs. The change yields a 20 percent increase in energy density. When combined with improved aerodynamics and tire designs, the platform delivers a 30 percent increase in range compared to the current generation. For the i3 sedan, this projects a WLTP range exceeding 500 miles (800 km), though official EPA figures for the US market will not be established until late 2026.

Production logistics underscore the scale of the shift. To make room for the electric assembly, BMW relocated its combustion engine manufacturing from Munich to facilities in Hams Hall, UK, and Steyr, Austria. This decoupling signals the end of engine building in the city where the company was founded, dedicating the main plant explicitly to assembly and electrification. Milan Nedeljković, Member of the Board of Management for Production, noted that the Munich lines are now capable of “market-dependent” flexibility, but the trajectory is exclusive to the new architecture.

Practical availability follows a strict timeline. The pre-series cars built this week will undergo cold-weather testing in Arjeplog, Sweden, and heat validation in Southern Africa. Series production—the cars customers can actually buy—begins in the second half of 2026. This places the first European deliveries in late 2026, with North American availability expected in early 2027.

The hardware rollout is global. While Munich handles the i3 sedan, the Debrecen plant in Hungary is preparing to launch the Neue Klasse SUV (successor to the iX3) on a parallel timeline. A third production node in San Luis Potosí, Mexico, is scheduled to come online in 2027 to serve the North American market, likely qualifying those units for US federal tax credits under current IRA guidance, provided battery sourcing requirements are met.

Questions remain regarding the pricing structure. BMW has not released trim levels or MSRPs for the i3. Industry analysis suggests the entry-level single-motor variants will need to price competitively against the Tesla Model 3 Long Range to maintain volume, while dual-motor M-performance versions will push into higher brackets. Also unknown is the final curb weight. While the cylindrical cells and “pack-to-open-body” construction—where the battery serves as a structural element—reduce weight, the total mass savings against the current i4 remain unverified.

For now, the existence of pre-production units validates the engineering claims. The platform is running, the cells fit, and the factory works. In an industry currently defined by delay, BMW has kept its appointment.