Mercedes-Benz SLR McLaren Review

South Africa might seem a strange place to launch a 200-mph exotic sports-GT car that will find owners mainly in the U.S. and western Europe. More so when you consider that the most significant achievement by an SLR model was in Italy, at the Mille Miglia event of 1955. But Mercedes-Benz 
has conducted operations in South Africa for more than 45 years, including complete vehicle assembly. More important, the weather in mid-November is fabulous.

Piloting these left-drive-only coupes in a right-hand-drive market took only a short adjustment, leaving us free to enjoy the SLR’s addictive power against the spectacularly scenic backdrop of the Cape mountains. The audio soundtrack wasn’t bad, either, with a muted but shrill scream of a twin-screw Lysholm blower accompanying a distinctly staccato roar from the 617-hp V-8’s side pipes every time the driver stabbed the pedal.

Each of the engine’s cylinder banks enjoys a stream of condensed intake air from separate intercoolers, together producing a torque curve quite similar to the profile of Cape Town’s Table Mountain. There is already 440 pound-feet of torque by 1500 rpm, and well over 500 pound-feet between 3000 and 5000 rpm. This lends mind-boggling elasticity to the SLR, with passing performance that has to be felt to be appreciated.

We’ve become fairly accustomed to huge output from AMG-built engines, but most of those are housed in conventional steel models weighing quite a bit more than the 3800-pound, carbon-fiber-bodied SLR. This isn’t exactly svelte when one considers that carbon fiber weighs half as much as steel. Mercedes claims 3.8 seconds for the 0-to-60-mph scramble, and we think that might be a conservative estimate.

The carbon-fiber structure, produced in an all-new facility in Woking, England, is the real story of the SLR, and it celebrates the relationship between Mercedes-Benz 
and McLaren in the Formula 1 circus. Under McLaren’s management, this new plant conducts the high-tech assembly procedures that will give birth to 3500 examples of the SLR over the next seven years.

This carbon-fiber road car exploits that material’s amazing strength and feathery weight for high performance and safety. The entire body is a composite molding, with beautiful front and rear aluminum subframes bolted and bonded to the tub to mount the engine and undercarriage. Below the tub is a completely flat underbody.

When you flip open the long clamshell hood, it’s a surprise to see how little of the exposed interior is filled by the engine. For optimal weight distribution (the percentage, front to rear, is 51/49), the engine protrudes only two or so feet forward of the base of the windshield. Ahead of that is a monstrous snorkel reaching for cool air rushing in around the three-pointed star.

Other neat features visible under the hood are the forged-aluminum double control arms, along with an anti-roll bar mounted above the suspension and torqued by a Formula 1–style rocker assembly.

At each end of the car are conical crash members made of 25,000 carbon-fiber filaments wound from 48 reels using techniques developed by the textile industry. As exhibits from crash tests proved, these crash members provide remarkable absorption and resistance to impact damage.

The composite body is palpably stiff to the car’s occupants, never emitting a squeak or groan on the worst surfaces, despite a suspension on the firm side. Those A-pillar-mounted gullwing doors—opening to 107 degrees and attracting hordes of onlookers—would undoubtedly betray deficiencies in the structure if there were any.

The inside of the SLR is as exotic as the Batmobile exterior, with carbon-fiber seat shells covered in fine leather and a cockpit built of contrasting colors and textures. To start the SLR, you turn the stubby key, flip a cover at the top of the gear selector, and thumb the button that hides there to bring the 5.4-liter V-8 rumbling to life.

Mercedes’ strongest five-speed automatic (with manual override) still required internal reinforcements to handle the enormous horsepower of the SLR. It offers three levels of transmission performance—comfort, sport, and manual. In manual mode, the box shifts only in response to the wheel-mounted buttons or a side swipe at the selector, and it has an additional three levels of response and shift speeds set by yet another rotary knob.

We like that this manumatic can be made fully responsive to the driver, turning the automatic box into something very like the paddle-shift system in Ferraris and allowing you to hold gears for corner entries and such. We like the electronic braking system less. There’s an initial dead zone in the pedal travel, and one instinctively feels for the usual hydraulic takeup point, whereupon the giant eight-piston front calipers take a firmer bite on the 14.6-inch ceramic discs than you’d planned.


Other than that, the SLR is largely devoid of the syrupy control feel that coats most Mercedes cars. Its steering is deliberate and linear, the power delivery smooth but somehow raw, the ride firm and immediate. There’s quite a bit of grip from the made-to-order Michelin Pilot Sport tires, abetted by a McLaren-tuned chassis and Mercedes-Benz’s electronic stability program, which—for once—has a pretty high threshold. A pity it still steps in so intrusively, but with so much potential and so much value in the car, maybe that’s a good thing.

There were mixed reactions to the SLR’s styling at its first appearance, but the positive response by potential buyers now suggests that every example will find a home.

Mercedes-Benz SLK-Class Review

2008 Mercedes-Benz SLK-Class SLK280 Convertible

Introduced nearly a decade ago as an answer to its European rivals in the luxury small roadster segment, the Mercedes-Benz SLK-Class was the first vehicle to truly popularize the use of a power-retractable convertible top made out of steel panels rather than the more traditional fabric soft top.

Though more complex and bulky, a convertible hardtop design, with its coupelike profile and superior wind and weather protection, does provide significant advantages in the top-up position. Offering more security, as well as a quieter cabin than its competitors' soft tops, the SLK could convert from a closed coupe to an open convertible without leaving the driver seat.

Though suffering from uninspiring handling and questionable sporting credentials for hard-core driving enthusiasts, the original SLK230 and SLK320 were popular with consumers. Improvements over the years kept the first generation competitive, but after seven years on the market the Mercedes-Benz SLK-Class was ready for a redesign.

With a dramatic design inspired by Mercedes' Formula 1 racecars, the second-generation SLK is even more fetching than the original. It's also slightly larger and more powerful than its predecessor, yet still possesses the upscale roadster character that made it so likable over the years. Even better than the added space is the car's redesigned dashboard with its cleaner layout and higher-quality interior materials.

Though most SLK models are inexpensive by Mercedes standards, some potential buyers might flinch at the vehicle's above-average price — and others might prefer the sharper handling dynamics of its German rivals. But for a convertible that sacrifices little in performance and excels at luxury and prestige, we think a new or used Mercedes-Benz SLK is a very good choice.

Current Mercedes-Benz SLK-Class

The current-generation Mercedes-Benz SLK-Class luxury roadster has been available since the 2005 model year. It's a proper sporting roadster thanks to its stiff body structure, rear-wheel drive and available sport-tuned suspension and strong brakes. For power, Mercedes offers a choice of two V6s as well as a muscular V8 from AMG, Mercedes' in-house performance tuner.

The SLK280 features a 3.0-liter V6 that produces 228 horsepower while the SLK350's 3.5-liter V6 produces 268 hp. Either engine can be matched with a six-speed manual or a seven-speed automatic transmission. The Mercedes SLK55 AMG is the performance model. It comes with a 355-hp 5.4-liter V8 engine stuffed under its hood. A seven-speed automatic is the only transmission offered.

When retracted, the hardtop takes up space in the trunk, but there's still 6.5 cubic feet left for luggage. Inside, the cabin is attractive with soft-touch materials for most surfaces. Soft and supportive seats remain comfortable even after several hours of driving. Keep the windows up while the top is down and there's minimal wind buffeting.

If that's not enough, consider the optional Airscarf system that channels warm air to your neck and shoulders via dedicated registers in the headrests. It actually works quite well; and when combined with traditional seat heaters, the Mercedes-Benz SLK becomes one of the most useful all-weather convertibles on the market.

While the old SLK was more of a boulevard cruiser than a canyon carver, the new SLK delivers solid all-around performance in acceleration, braking and handling. Obviously, the AMG model offers the most performance of the group, and indeed it posts impressive numbers. Even the 280 and 350 models are fun to drive. The SLK's slightly less communicative steering and slower handling responses only become apparent when comparing them directly against this segment's more deliberate sports cars.

Past Mercedes-Benz SLK-Class models

The original Mercedes-Benz SLK debuted for the 1998 model year. Introduced as an answer to the BMW Z3 and Porsche Boxster in the premium small roadster segment, the SLK's most unique feature was its retractable hardtop roof, which offered more security as well as a quieter ride than its ragtop-roofed competitors. With the touch of a button, one could convert the SLK from a closed coupe to a cool convertible in less than 30 seconds without leaving the driver seat.

Initially, the SLK was available only with one drivetrain, a supercharged 2.3-liter inline-4 sending its 185 hp through a five-speed automatic transmission. But the SLK230's lack of a manual gearbox, along with its anemic exhaust note, made for little excitement among serious driving enthusiasts.

The SLK's second year brought a manual tranny as standard, moving the automatic to the options list. Ever conscious of its buyers' fashion leanings, Mercedes introduced Designo editions in 2000 that featured special colors (such as Copper and Electric Green) along with unique interior trim.

Those who liked the Mercedes-Benz SLK but wanted a more refined power plant had their wish granted for 2001, when the SLK320 bowed complete with a 215-horse 3.2-liter V6. Other good news that year included the replacement of the five-speed manual with a six-cog unit and more power for the 230's force-fed four, with output now rated at 192 ponies.

Perhaps in an effort to quash the SLK's reputation as a "boutique" roadster, Mercedes brought out the muscle-bound, AMG-tuned SLK32 for 2002. The SLK32 AMG brought 349 hp to the party by way of a supercharged 3.2-liter V6. Along with the power infusion, handsome double-spoke 17-inch wheels with performance tires were fitted, along with a massaged suspension, full ground effects and a discreet rear spoiler.

During the first SLK's run, we commented favorably about its distinctive retractable hardtop, its quiet composure on freeway drives and the impressive performance from the AMG variant. Noted downsides at the time included a lack of steering feel and the big blind spots with the top up.