The BMW M4—a legend in its own right—has been quite well received in its most recent generation. With plenty of power and unique carbon fiber components, it’s a true, fly-by-the-seat-of-your-pants performance coupe. But what if we told you there’s a more potent version—for when “insane” just isn’t enough?
Go Behind the Scenes With the “Ultimate” BMW M4 GTS
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