500 hp BMW M4 GTS gives the Mercedes-AMG C 63 S a run for its money
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500 hp BMW M4 GTS gives the Mercedes-AMG C 63 S a run for its money

Home AMG C 63 AMG 500 hp BMW M4 GTS gives the Mercedes-AMG C 63 S a run for its money

BMW M4 GTS is Bavaria’s answer to the mighty Mercedes-AMG C 63 S Coupe, a car seemingly impossible to dethrone at the top of the premium middle class. With 500 hp and 600 Nm on tap, the 700 units limited edition and track focused BMW can lap the legendary Nurburgring Nordschleife in 7.28 minutes sharp. Here from Spring 2016.

Not much has changed since the Monterey Concours d’Elegance concept. The exterior sees its flamboyant spirit unaltered by the transition from conceptual form to production, orange painted alloys and exaggerated aerodynamic accents included. No special M4 could do without some aero-tricks, though. The new front splitter and rear wing are not only sexy but also fully adjustable while the carbon fiber top has also been green-lit for series manufacturing. The BMW M4 GTS has also retained the OLED technology featured on the Pebble Beach prototype, a new kind of light source that light up over their full surface with a very homogeneous effect – unlike LED units, which emit their light in the form of points –  a world first for production vehicles.

Thanks to the intelligent lightweight construction BMW M engineers have managed to limit the car’s DIN kerb weight to 1,510 kilograms and reach an outstanding weight-to-power ratio of 3.0 kg/hp. The instrument panel bracing tube is made from lightweight carbon fibre, just like the bucket seats and the center console. CFRP is used for the newly shaped bonnet, roof, boot lid, bumper diffuser and adjustable front splitter and rear wing. In place of a rear seat bench, the BMW M4 GTS features a glass-fibre-reinforced plastic (GFRP) shelf and a rear panel in carbon-fibre sandwich construction, covered in Alcantara. Lightweight interior door panels and rear side trim plus door pull loops with M stripes complete the picture.


Also part of the extensive weight reduction package are the exclusive Acid Orange M light-alloy wheels in star-spoke 666 M Styling fitted with Michelin Pilot Sport Cup 2 tyres (front:265/35 R19, rear: 285/30 R20). Damping is also state-of-the-art with the specially tuned three-way M coilover suspension. This is fully adjustable, with precise independent adjustment of low-speed and high-speed compression, lightweight aluminium control arms, wheel carriers and axle subframes. Drift maniacs can activate the M Dynamic Mode (MDM), a special DSC mode which allows more wheel slip for controlled drifting. The level of steering assistance is adaptable too thanks to the Servotronic button on the centre console, set to offer three different settings, COMFORT, SPORT and SPORT+. As a matter of fact, the electromechanical steering system was also developed in-house by the BMW M division with no elastic section in the BMW M4 GTS steering column, for better feedback. Lightweight, optimised, ultra-high-performance M carbon ceramic brakes with six pistons at the front wheels and four pistons at the rear wheels are standard just like the Sports exhaust system with muffler made from ultra-lightweight titanium, tailpipes with 80-millimetre diameter and laser-engraved M logo.


Another talking point in relation to the upcoming BMW M4 GTS is its revolutionary water injection implemented by Bavaria’s finest in their quest to keep the temperature of the combustion chamber as low as possible with immediate advantages in therms of the turbocharger’s speed of reaction and above all the reliability of the engine. Water is injected as a fine spray into the intake manifold plenum chamber where it evaporates, significantly lowering the temperature of the intake air, allowing the turbocharged engine to operate with higher boost pressure and earlier spark timing. The result is increased power and torque, and a substantial improvement in efficiency. In fact, the BMW M4 GTS is the first production road car to be fitted with such a system.

The seven-speed M Double Clutch Transmission (M DCT) gets standard shift paddles for manual operation alongside Drive Logic shift and Launch Control programs, all optimized to match the increased power output. Two fast-responding mono-scroll turbochargers, High Precision Injection, VALVETRONIC variable valve control and Double-VANOS continuously variable camshaft timing are all bound to honor BMW’s reputation for creating excellent engines.


Just how worried the all-new Mercedes-AMG C 63 S Coupe should really be though? Very! BMW is poised to give its Affalterbach nemesis a hard time and inject 500 hp and 600 Nm (4.000 rpm to 5.500 rpm) into the twin-turbo 3.0-liter inline six. Zero to 100 km/h (62 mph) takes 3.8 seconds, on the way to a governed top speed of 305 km/h (189.5 mph), enough to challenge the mighty Merc and give us goose bumps at the thought of an epic comparison test. Bring it on!

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