The Mercedes-AMG GLC 43 4MATIC, GLC 63 4MATIC and GLC 63 S 4MATIC are the most powerful and best-featured versions of the GLC range (a larger SUV than the GLA and smaller than the GLE ). The first of them is on sale from June 2016 for 67 750 €; The remaining two will be in June 2017.
They are distinguished mainly by the architecture of the engines (six cylinders for the first and eight for the other two) and for the power they develop: 367, 476 and 510 HP. In all three cases, they are supercharged by means of two turbochargers , although those of the more powerful versions are placed in the center of the V which form the two cylinder banks. Technical sheets .
According to Mercedes-Benz, the GMA 43 4MATIC can accelerate from 0 to 100 kilometers per hour in 4.9 seconds and its maximum speed is limited to 250 kilometers per hour. The SUVs that most closely resemble this Mercedes-AMG by size and power are the BMW X4 M40i , the Audi SQ5 and the Porsche Macan GTS ( comparative tab ). There is no similarly powered BMW X3 .
The GLC 63 4MATIC and GLC 63 S 4MATIC are logically faster accelerating from 0 to 100 km / h (it takes 4.0 and 3.8 seconds respectively), but they reach the same maximum speed, which in all cases is limited Electronically. At the moment there are no SUVs of similar size that have such a powerful engine; The closest model is the Porsche Macan Turbo «Performance Package», which has 440 hp and acceleration from 0 to 100 km / h slower (4.4 seconds).
There are two types of gearboxes, although in both cases they are automatic and have nine ratios. The 4MATIC version 43 is similar to the one used by other versions of the GLC range, but has different adjustments to make its response more agile on the road and includes additional functions (simulates the double clutch maneuver in detents and has a program Of manual operation that does not select a higher gear even if the engine reaches the limit of operation). The use of the 63 4MATIC and 63 S 4MATIC versions is slightly different because it uses a wet multi-plate clutch as an engine attachment (instead of a torque converter ), a solution that, according to Mercedes-AMG, saves weight and decreases the time Between shifting gears.
Also the systems of total traction are different. The most powerful versions – 63 4MATIC and 63 S 4MATIC – are similar to the one used by Mercedes-AMG in the E 63 4MATIC and E 63 S 4MATIC and is characterized by the fact that, depending on the driving mode selected, Motor power continuously between the two axles depending on the adhesion or transmitting it all to the rear axle. The 4MATIC version 43 system, under normal conditions, transmits more power to the rear axle than to the front axle (the ratio is 69/31).
Under the name AMG Dynamic Select, Mercedes-Benz includes four driving programs (Comfort, Sport, Sport Plus and Individual), which in the case GLC 63 S 4MATIC adds an additional one called RACE. This mode is designed to skid because it disables stability control and because the traction system sends all the force to the rear axle. Regardless of the chosen mode, the driver can select the manual program of the gearshift.
The cushioning of the three versions is pneumatic (Air Body Control) and has three hardness settings. Suspension has major changes. Thus, in the front axle, Mercedes-AMG has changed the sleeves, has increased the rigidity of the attachment points of the suspension to the wheel and the negative fall of the wheels is greater. He has also reviewed the elastokinetics of both front and rear suspension. The front brake discs are larger than those of any other GLC: the front discs of version 43 4MATIC are 360 mm in diameter (perforated) and the rear 320 mm (solid); The front of versions 63 4MATIC and 63 S 4MATIC are 390 mm and are also perforated.
Mercedes-AMG differentiates the bodywork and the interior of these models with exclusive decorative details. For example, the instrumentation looks different, the steering wheel is different (it has the flattened bottom, picture ) and the seats give more lateral support. The grille is different and the wheels are 19 inches in diameter (20 in the 63 S 4MATIC version). There are several options to further customize the car, such as seats with headrests integrated into the back ( image ), rims up to 21 inches in diameter (and two-color finish) or carbon fiber trim.