BMW M4 GTS prototype tests at the Nurburgring

A new prototype of the upcoming BMW M4 GTS has been filmed in the midst of testing where else but the Nurburgring.

On the surface, this particular mule looks identical to previously spied ones but there is one key difference; a larger rear wing. Alongside being taller, the rear wing adorning this M4 GTS tester features significantly larger endplates. Inevitably producing more downforce than the previously-fitted wing, it seems apparent that the German marque is sussing up between a number of different aerodynamic options for the hardcore M4 variant.

[youtube]https://www.youtube.com/watch?v=GcdxF0loP9I[/youtube]

It is suggested that just like the E92-generation BMW M3 GTS, the new M4 GTS will be oriented around racetrack driving. It is also said that the water-injection system of the M4 MotoGP Safety Car will act as a cooler for the engine’s charge intake to both reduce knock and open up the possibility of running additional boost.

Beyond this system, Car and Driver believes that the BMW M4 GTS will adopt a tweaked suspension system as well as a set of ultra-sticky tyres. When combined with less weight thanks largely to a stripped out interior, the M4 GTS will inevitably be faster than the current car. Slight bumps in both the horsepower and torque figures are also expected.
The car will reportedly debut in concept form at this August’s Pebble Beach Concours d’Elegance.

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