The 2019 BMW X4M has been spied undergoing cold weather testing, revealing portions of its exterior and other small details.
Like other BMW M models, the X4M will be signified by its quad-exit exhaust tips, revised front and rear fascias, larger wheels and drilled and vented rotors. The prototype shown in these photos is also sporting a subtle rear lip spoiler, along with a top-mounted rear hatch spoiler.
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