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2008 Mercedes-Benz S-Class S63 AMG review:

2008 Mercedes-Benz S-Class S63 AMG

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We had no complaints about the quality of the audio. This car uses a 14-speaker 600 watt Harmon/Kardon Logic7 stereo system, which sounds excellent. It's almost too clear, as we heard imperfections in the recordings we listened to. The shriek of a guitar on a White Stripes track was satisfyingly deafening, while bass-heavy tracks delivered a good thump. Even though the car uses XM for its traffic, it uses Sirius for satellite radio. We found it easy to select stations using the unique radio interface with the COMAND system. The six-disc changer, mounted behind a panel in the center stack, plays MP3 CDs and DVDs, with ID3 information for MP3s displayed on the LCD. Another digital audio source can be found in the PC Card slot mounted just below the six-disc changer. We find this choice a bit odd, because PC Cards aren't very common anymore, although you might be able to dig one up that worked as an adapter for SD cards or Compact Flash.

The S63 AMG includes Bluetooth for a select list of phones and has a first-rate speech-recognition system.

For a long time, Mercedes-Benz restricted its cell phone integration to a hard-wired cradle system, but it fitted a Bluetooth system into the S63 AMG. Unfortunately, we couldn't get this system to pair with our Samsung SGH-D807, which isn't on its list of compatible phones. To check if your phone is compatible, visit the Auto Wireless Solutions Web site.

We covered some aspects of the speech recognition system above. This system did a fantastic job of recognizing and responding to our commands, allowing almost normal speech in many instances. We easily set a destination back to our office in San Francisco by spelling out the street name in one string. It also knows the names of satellite radio stations and will play them from a vocal command.

The front seats in this car are really incredible. We mentioned the massage aspect above, which lets you choose from four massage types. You can also fine-tune the intensity of the massage for your back and shoulders. But these seats do plenty more. First, they allow a fine degree of tuning to fit their occupants, from extending the seat out, tightening up the sides, and moving the lumbar support. These seats also have a dynamic component, adjusting the side bolsters to support their occupants while cornering. The intensity of the side bolstering can be adjusted or turned off entirely.

Under the hood
While we've seen most of the S63 AMG's cabin electronics in other Mercedes-Benz models, this engine is something new. We got a special presentation on Mercedes-Benz's AMG tuner division earlier this year, and the chance to drive a number of other AMG models. With AMG cars, the engine is hand-built and signed by the engineer responsible. AMG has been equipping a number of Mercedes-Benz models with the 6.3-liter V-8 used in the S63 AMG. But each car gets its own special tweaking. In the S63 AMG, the engine cylinders have been given a special coating to reduce friction. The seven-speed automatic, currently used in most Mercedes-Benz cars, is tweaked by AMG for faster shifts.

AMG engines are works of art, with a badge on top signed by the engineer who built it.

As the S63 AMG uses a smart key, you bring the car to life by pushing a button. The engine turns on with an impressive roar before settling down to idling speed. We noticed while driving this car that, under acceleration we could hear the really fine engine note, but while cruising on the freeway sound was deadened, letting us listen to the excellent stereo system without interruption. The transmission can be cycled through three modes with a button on the console: Sport, Comfort, and Manual. Sport holds revs longer than Comfort, while Manual lets you roll your own using the paddle shifters on the steering wheel. When we stomped the gas in Sport mode, we didn't get an immediate rush of speed, although the car picked up quickly, and its 518 horsepower would have kept up that acceleration for a long time. Manual mode was a different matter, letting us hold first gear so the car could leap forward on its 465 foot-pounds of torque.

As we threw the car around during out testing, we found that it cornered exceedingly well for a big sedan, maintaining an even keel at speeds that would have many cars off the track. But we had to be wary of the fact that the S63 AMG insulates you from the feeling of speed, so it was often going faster than we would have thought from looking out the windshield. A heads-up display could be useful in this car. Surprisingly, we could even get a bit playful with it, snapping around tight corners and letting the back end get out a bit. We never felt like it was about to fishtail in these instances, with the car maintaining our sense of control throughout. As we powered out of corners, the S63 AMG felt like what it was: a rear-wheel-drive car with lots of horsepower.

The S63 AMG uses Mercedes-Benz's standard drive selector, along with paddle shifters for manual control of the transmission.

But there is a price to be paid for this type of fun. And in the case of the S63 AMG, it's a very steep price. The car's EPA rated mileage is an awful 11 mpg city and 17 mpg highway, subjecting it to the gas guzzler tax. During our test period, which involved city, freeway, and mountain driving, we saw an average fuel economy of only 13.2 mpg. Although we imagine anyone that can afford this car won't scoff at $80 fill ups, the fuel economy affects the range, letting you travel maybe 350 miles before you have to stop. Likewise, it only meets California's minimum LEV II standard for emissions.

The S63 AMG features the best Mercedes-Benz safety tech, including its Pre-Safe system, which uses the front radar to detect imminent collisions. During our drive, we experienced the first stage of this system on a few occasions. As we rolled forward toward another stopped car, the S63 AMG gave an audible signal to let us know we should hit the brakes. If we hadn't done so, it would hit the brakes for us. If it sensed that even braking wouldn't stop the collision, it would tighten the seat belts and take other measures to protect the occupants.

In sum
The 2008 Mercedes-Benz S63 AMG is an example of what you can get if money is no object. The car bases at $127,000, which includes a lot of the gear mentioned above, such as the Harmon/Kardon stereo and the navigation system. But we added a few other high-tech options, starting with the adaptive cruise control for $2,870 and Night View Assist for $2,090. An AMG performance package gave us 20-inch wheels and adjusted the top speed governor to 186 mph, all for $7,000. The rear seats got eight-way power adjustment and their own sunroof for $3,930. Along with a $775 destination charge and $3,000 gas guzzler tax, our total came out to $146,665.

This car came awfully close to earning a perfect score from us. For design, we really like its looks, with its pronounced wheel arches almost looking like classic fenders and its general big European sedan style. And the interior is just a nice place to be, with its clean dashboard design. For cabin electronics, we might have liked an in-dash music server or an iPod connector, but the lack of those was completely made up for by the over-the-top features, such as the massage seats and the adaptive cruise control. And we can't deny how good the stereo sounded or how well the speech recognition worked. In the performance department, again, perfect, except for that little problem of terrible fuel economy. The only car we've reviewed with which we can compare the 2008 Mercedes-Benz S63 AMG is the 2008 Lexus LS 600h, a car that may fall a little short in acceleration, but gets 8 mpg better than the S63 AMG.

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