Spy Shots: BMW M4 GTS Track Car
 

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Our spy photographers have coined this the BMW M4 GTS. For all I know, the car you see in these spy shots could end up being called the BMW M4 Extra-Strength, but for now, let's just call it the M4 GTS.

What is it? Well, "Extra Strength" pretty much describes it. In BMW's relentless pursuit of higher speeds, they are working on this hopped-up M4 that looks like it's ready to bitch-slap multiple race tracks in a single swat.

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