For the first time, the two are built in different plants.
The 2021 BMW M3 and 2021 BMW M4 made their long-anticipated debut in September, and just a few months later, the two are reaching production. This week, 35 years after the debut of the original E30 generation M3, the new F80 model rolled off the assembly line at BMW's Group plant in Munich. "We are very pleased to be producing the new BMW M3 at our parent plant going forward," commented Plant Director Robert Engelhorn. "It's such an iconic car and has many fans among our team at the plant, me included."
The Munich plant produces the entire 3 Series line, including the 3 Series Touring and all plug-in hybrid, gas, and diesel engines, making it easier to add the M3 to the assembly line. "The integration of the M3 went absolutely smoothly. We benefitted from the vast experience gained with previous generations of BMW M vehicles," Engelhorn explained.
The last-generation BMW M4 was also produced in Munich, but this new model will be produced at BMW's Dingolfing plant. That factory just started producing the BMW 530e Touring (a model we don't get in the US), the 4 Series Convertible, and the M4 Coupe. Like the Munich plant, Dingolfing is configured so that all vehicles share one assembly line. The plant currently builds the variants of the 3, 4, 5, and 6 Series.
Moving the M4 to a different plant had some interesting effects on M3 production. The new M carbon bucket seats, which are produced in-house, require totally new manual workflows. BMW also manufactures and installs the M3's hood and side panels by hand.
In an included video, BMW shows a new M3 going through the assembly line process, including the attachment of its controversial kidney grille. We particularly enjoy seeing the painting process where the M3 receives its new signature shade of Isle of Man Green. The M3 and M4 will arrive next year sporting a 3.0-liter twin-turbocharged inline-six and a choice of an eight-speed automatic transmission or six-speed manual.