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Welcome arrow Articles arrow Car Reviews arrow Mercedes-Benz E63 AMG
Mercedes-Benz E63 AMG PDF Print E-mail

The Mercedes-Benz E-Class is supposed to make the transition from the volume-selling C-Class to the luxury S-Class; a simple but effective executive mode of transport.? But slot in a massive 6.2 liter V8 chucking out in excess of 525 bhp (386 kW) and you have a stunning machine that excites all the senses.

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A sudden stab of the accelerator can unleash all those horses and ? momentarily ? catch out the traction control.? Caution is advised if the road is wet or slippery, but in the dry it is tremendous fun. Alternator management takes advantage of the engine?s overrun and braking to recover kinetic energy. This energy is then used to charge the battery, rather than being wasted by simply generating heat. This recuperation assists the driver not only during braking but also helps convert the braking energy into electrical energy. This is similar to the KERS that some Formula One cars used throughout the 2009 season. Conversely, the alternator is switched to no-load operation during acceleration, thus reducing the load on the engine.

In typical AMG fashion, the design of the 6.2-liter V8 was based closely on its motorsport counterparts. As is customary with thoroughbred racing engines, the AMG engineers opted for a closed-deck design with the crankcase made entirely out of aluminum for the eight-cylinder unit. To produce a crankcase with exceptional torsional stiffness, the bottom section of the crankcase was designed as a bedplate. This produces a very stiff tunnel for the crankshaft which can easily withstand the high combustion pressures and reduces flow losses within the crankcase. The resulting improvement in mechanical efficiency helps reduce fuel consumption. An oil scavenger integrated into the bedplate reduces engine oil foaming.

The naturally-aspirated V8 ranks as one of the world?s most powerful road-going units, while its maximum engine speed of 7,200 rpm is unusual for a four seater sedan of this nature.? Apart from its out-and-out power characteristics, it also possesses stunning low-speed pulling power.? Maximum torque of 630 Nm is delivered at 5,200 rpm, but a great percentage of the available torque is on tap at lower engine speeds.

A unique feature of the car is the absence of a conventional torque converter: the 7-speed sports transmission features a wet start-up clutch that runs in an oil bath and replaces the normal torque converter, while the even more fuel-efficient driving mode ?controlled efficiency? utilizes early upshifts to keep engine speeds as low as possible.

The interior, as you would expect at this level, is both comfortable and functional.? Unlike the stablemate C63, however, the seats, particularly the driver?s, are comfortable and sufficiently wide enough to accommodate a typical farang backside.? The excellent Harmon Kardon audio system provides surround sound and, the lovely engine growl notwithstanding, is almost concert-hall like in its reproduction quality.

In a poll in a German magazine, over thirty-two percent of Auto Bild Sportscars readers voted for the E 63 AMG, putting the sports saloon some eleven percent ahead of the second-placed model in a resounding victory as ?Sports Car of the Year?.

The Gazette road test of the E63 AMG took place in the congested Western district of Hong Kong, with errant minibuses and taxis dodging in and out of the traffic.? Despite the distractions, the big Mercedes was quite happy pottering along at almost pedestrian speeds, although the firm suspension and low-profile tires remind the driver of exactly what kind of machine this really is.? Once on the open road though, the acceleration is ? truly stunning.? There is no other word for it.

 

 
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© 2018 Jeff Heselwood. All rights reserved.
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