The BMW iX4 is already rolling off the line in Debrecen, Hungary, four months before a single customer can take delivery. Its March 2027 launch is still a winter away, and the plant is already filling the pipeline.
The timing makes sense once you look at the factory’s calendar. Debrecen has been running three shifts, 24 hours a day, since September.
It had no choice. The iX3 ramp-up was the fastest BMW has ever managed at a new plant, with the 50,000th car built in July, less than a year after production started.
Demand still outran it. More than 100,000 European customers ordered the iX3 in the year after its world premiere, and the car picked up the 2026 World Car of the Year title along the way.
Now a second model is moving into the same building. Internally coded NA7, the iX4 takes the X4 formula, a sloping roof stretched over SUV proportions, and puts it on Neue Klasse hardware.
The awkward part for the iX3 is that its fastback sibling beats it on paper.
The iX4 50 xDrive is rated at up to 828 km (514 miles) on the WLTP cycle. The iX3 50 xDrive tops out at 805 km (500 miles).
Charging follows suit. Both cars peak at 400 kW, yet the iX4 adds up to 387 km (240 miles) in 10 minutes against the iX3’s 372 km (231 miles).
BMW hasn’t explained the gap. A lower roofline punching a smaller hole through the air is the obvious suspect, though the company won’t confirm it.
The entry iX4 40 xDrive is rated at up to 638 km (396 miles) WLTP. Both launch versions use BMW’s sixth-generation eDrive, with cylindrical cells and an 800-volt electrical architecture.
Their motors come from BMW’s plant in Steyr, Austria, the same source that supplies the iX3. The batteries never leave Debrecen. They’re assembled on site, a short trip from the body shop.
That self-contained setup is the point of the place. Debrecen has its own press shop, body shop, paint shop and final assembly, and it builds nothing but electric cars.
It opened officially in September 2025, BMW’s first new car factory in Europe in more than two decades. The company is putting more than €2 billion into the 400-hectare site.
The plant burns no fossil fuels, which is rare for a car factory. It runs on renewable electricity and covers about a quarter of its annual power needs with on-site solar.
Surplus solar goes into a thermal storage system holding 1,800 cubic meters and 130 MWh of capacity.
Plant chief Hans-Peter Kemser says Debrecen is taking on a bigger role in BMW’s electric lineup with the iX4. The workforce is still growing, with training running alongside the expansion.
Growth has a ceiling, though. Debrecen is planned for about 150,000 cars a year.
The iX3 alone drew more than 100,000 European orders in twelve months. The iX4 arrives with more range, faster charging and a shape designed to sell on looks.
BMW hasn’t said how those 150,000 slots will be split between the two. The math gets harder in March 2027, when the iX4 M60 xDrive joins the line in the same building, on a clock that already never stops.
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