Alpha-N Performance transforms ordinary BMW M4 into an M4 GTS rival

Article by Christian A., on August 14, 2017

Putting a standard BMW M4 Coupe next to the M4 GTS is like comparing a fast runner to an athletic sprinter. A typical BMW M4 may be the performance version of the 4 Series, but the M4 GTS is the one with steroids. However, a recent project by German tuner Alpha-N Performance has resulted to a tweaked M4 Coupe that has enough capability to beat the M4 GTS.

The tweaks implemented by Alpha-N Performance on the M4 Coupe aren’t your ordinary modifications. After all, the Alpha-N Performance’s BMW M4 was able to complete a lap in the Nurburgring circuit I Germany faster than the record set by the BMW M4 GTS. Nurburgring has been a benchmark for performance in the auto world – considering its complicated course -- and carmakers as well as tuners have been trying to prove their vehicle’s worth by doing a run in the so-called Green Hell.

Alpha-N Performance started out with some modifications on its biturbo 3.0-liter straight-six engine. Ordinarily, this engine could deliver 425 hp (431 PS) of max output as well as 406 lb.-ft. (550 Nm) of peak torque, allowing the M4 Coupe to sprint from zero to 60 mph in 4.1 seconds via a standard six-speed manual transmission (3.9 seconds with M-DCT transmission).

Alpha-N Performance installed “bespoke software” for the biturbo engine, resulting to a huge surge in max output, which is now pegged at 560 hp. This output level is higher than what the mill inside the M4 GTS could deliver -- 500 hp max output.

Of course, other modifications were also made. For instance, Alpha-N Performance borrowed the transmission software from the GTS to ensure that its seven-speed, dual-clutch transmission would be able to adopt the extra power. Alpha-N Performance also borrowed the differential and the settings for the stability control system while replacing the standard suspension with an adjustable Öhlins’ coilover setup. Additionally, Alpha-N Performance made the M4 Coupe ride on lightweight 20-inch OZ Racing alloy wheels.

Alpha-N Performance also made efforts to make the M4 Coupe lighter, which was achieved by installing a custom carbon fiber hood with built-in air outlets. The tuner also installed a bespoke front bumper that doesn’t only offer more downforce but also directs air flow to the brakes. Alpha-N Performance likewise installed a carbon fiber rear wing to generate more downforce. Of course, the modifications also include some interior changes, like the fitment of Recaro bucket seats.

The result of these tweaks is a BMW M4 by Alpha-N Performance that was able to complete the Nurburgring circuit in just seven minutes and 20 seconds, which is faster than the seven minutes and 28 seconds of the M4 GTS.

Source: Alpha-N Performance

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