This is the match of the year: the new Mercedes GLE 63 AMG Coupe moves against the new BMW X6M and the Porsche Cayenne Turbo S. Both the Mercedes GLE 63 AMG Coupe and the Porsche Cayenne Turbo S were launched in Detroit, meanwhile the BMW X6M showed the lights of glory in November last year at Los Angeles Auto Show.
There are not so many auto shows which can announce the launch of two hot luxury SUVs in the same time. At the Detroit 2015 Auto Show, Mercedes came with the new Mercedes GLE 63 AMG Coupe, meanwhile Porsche exhibited the Cayenne Turbo S, the most powerful Cayenne after the facelift. And not so long ago, in November 2014, BMW presented at the Los Angeles Auto Show the most powerful second X6 generation: the X6M.
All the three top luxury SUVs features big displacement V8 bi-turbos, four wheel drive and automatic transmissions with 8 gears for the BMW and the Porsche and 7 gears for the GLE 63 AMG Coupe.
And all three top SUVs will start this year on the market, between April and July.
But similarities do not stop here. The high-tech drive train features the same innovations for all three models.
The re-engineered 4.8 liter V8 biturbo engine of the Cayenne Turbo S gained 20 HP and 50 Nm and reaches a maximum output of 570 HP and a maximum torque of 800 Nm. Porsche has announced a record lap of 7:59.74 minutes on the North Loop of the Nurburgring, but how do they know what BMW or Mercedes could achieve?
In the case of the BMW X6M, the Valvetronic 4.4 liter V8 biturbo produces a maximum output of 575 HP and a maximum torque of 750 Nm, which mean a plus of 15 HP and 70 Nm.
As in other cases, Mercedes came with two versions for the 5.5 liter V8 biturbo AMG engine: 557 HP/700 Nm and 585 HP/760 Nm for the S model.
All three models offer an adaptive drive train. For Mercedes, the adaptive drive train is a premiere in an SUV.
In the case of the GLE 63 AMG Coupe, the driver can choose between Slippery, Individual, Comfort, Sport and Sport Plus. The X6M driver has the possibility to select Comfort, Sport or Sport Plus modes at the touch of a button in the centre console or by storing their preferred settings in the M Drive buttons. BMW promises that the X6M support a lateral acceleration up to 1.2 g, which is a figure from the supersport cars category.
To minimize the body roll in quick curves, all three SUVs have an active roll stabilization system, which acts after the same principle of active stabilized bars. Mercedes named it Active Curve System, Porsche calls it Porsche Dynamic Chassis Control, meanwhile BMW uses the name Dynamic Drive. Mercedes and Porsche feature an air suspension in all the wheels, meanwhile the X6M come as standard with an air suspension only for the rear axle.
For even more dynamism, Porsche uses the Porsche Torque Vectoring Plus (PTV Plus), meanwhile BMW features the Dynamic Performance Control. Both systems replace the function of a lock differential on the rear axle and even more.
Porsche is recognized for high performance brake systems and it seems that the Cayenne Turbo S has an advantage due to the fact that Porsche Composite Ceramic Brakes are standard. For the first time, the front disc brakes with 420 mm in diameter use a TEN (!) piston calipers. The rear brake discs have 370 mm and four piston calipers.
BMW is using the high-performance compound brakes with large six piston fixed calipers at the front and single piston floating calipers at the rear. All brake discs are perforated and inner-vented. Mercedes is using the classic steel ventilated and perforated disc brakes with 390 x 36 mm in front and 345 x 26 mm in the rear.
The Mercedes GLE 63 AMG Coupe reaches a 250 km/h limited maximum speed, meanwhile Porsche went to a maximum 284 km/h. In standard condition, the X6M is limited to 250 km/h maximum speed, but with the M Driver’s package, it can reach 280 km/h.
And the sprint from 0 to 100 km/h is like a photo finish at the World Cup Athletics final: 4.1 seconds for the Porsche and 4.2 seconds for the Mercedes and the BMW.
All three cars come with an impressive look offered by the sport exterior packages and huge rims of 21 inches for the Porsche and 21 inches (for GLE 63 AMG Coupe) or even 22 inches for the S version of the GLE 63 AMG Coupe (325/35 R22 at the rear and 285/40 R 22 in front). The BMW X6M rolls on 20-inch rims (285/40 R20 in front and 325/35 R20 at the rear) with the option for 21-inch rims with the Michelin Pilot Super Sport UHP tyres.
Theoretically, with their sloping roof, the BMW X6M and the Mercedes GLE 63 AMG Coupe are a different species related to the Porsche Cayenne Turbo S.
The Mercedes seems to be more practical than the BMW, with more headroom in the rear.
The Porsche should compete against the X5M and the future GLE 63 AMG, but with its aerodynamic silhouette and astonishing performances, we could include it in the superliga of the SUV-coupes.
And, there’s no surprise, the Porsche is the most expensive one, with a price of 166,696 euros. The Mercedes and the BMW are a bargain with an estimated price around 120,000 euros.