2012 Mercedes-Benz SL550: The incredible lightness of being
Mention the Mercedes-Benz SL-Class, and many will think of a prestigious, modern car that combines elegance and sportiness. For others, thoughts will turn to a past icon with a rich history that dates all the way back to 1954. In 2012, the sixth generation will bring new drivetrains, a modified style and a car that has been on a crash diet. After all, the Mercedes-Benz SL — for Super Light — has built its reputation on its lightness and excellent weight-to-power ratio.
The SL550 will be the first of the 2012 vintage made available. A few weeks later, the SL63 AMG will follow, equipped with a 5.5L twin turbo V8, the same engine that equips most 63 AMG models. Gone for good is the SL600 with the V12 engine, but the demonic SL65 AMG with its 621-hp V12 will be back next year (even though Mercedes-Benz still doesn’t want to confirm it officially).
An all-aluminum body
Rivalling a few other vehicles that you may have heard of, such as the Porsche 911, Jaguar XK and BMW 6 Series cabriolet, the Mercedes-Benz SL is built on a brand-new chassis made entirely of aluminum. It also includes a few magnesium parts to make it even lighter. In fact, only the windshield uprights are made of steel, a necessary evil to ensure your safety in case you flip. With the exception of the manufacturer’s super sports car, the SLS, the SL550 is the first Mercedes to get this type of chassis. Note, however, that it is already featured on the Jaguar XK. As a result, the SL550 weighs an exceptional 125 kg less and yet is more rigid than ever. Changes that bring such wonderful side effects are rare.
To reduce emissions and fuel consumption, the 5.5L naturally-aspirated V8 has been replaced by a lower-capacity turbocharged engine, namely a 4.6-litre V8 that develops 429 horsepower. Not only is it more powerful than the old V8 (47 more horsepower), it also slashes fuel consumption by 22%. Since this new engine has a 4.6L capacity, shouldn’t they call it the SL460? No chance, says Mercedes-Benz, unwilling to risk ruffling the feathers of the current clientele by messing with the names. In fact, a lot of Mercedes model names no longer reflect their engine capacity. It’s the kind of change you can’t really predict years in advance.
The SL’s V8 twin turbo transmits power to the rear wheels using a new generation seven-speed automatic transmission optimized for comfort and reduced fuel consumption. Certain twin-clutch gearboxes demonstrated better – at least sportier – performances, but in the case of the SL, they decided to favour comfort. Finally, to maximize fuel economy, an Eco mode was added to the vehicle, as well as a Start/Stop system.
Clash of styles
The SL’s timeless and sophisticated lines have always won people over, and that goes double for the classic version of the coupe with its Gullwing doors, a style feature used on the SLS as well. Meanwhile, the 2012 SL roadster has the classic lines of the other generations, with reduced overhangs and a set-back passenger compartment that leaves extra room for an extended hood. Seen from the front, the car appears sportier and more rebellious than in the past, especially with the AMG Package, which comes factory standard in Canada and includes a more aggressive fascia and nicer rims.
The effect is a lot less pronounced in the back. The difference between the front and tail ends is so contrasting, you’d think two different stylists worked on the car. The rear is less muscular and very low-key – maybe a little too low-key. It will no doubt be modified in short order.
Inside, numerous elements are also inspired by the SLS, such as the sport-styled air vents and instrument panel. But the seats are much more comfortable. SL buyers like the car’s sport qualities but are unwilling to sacrifice comfort. Besides its aluminum body, the SL introduces two other innovative advancements. First, Magic Vision Control includes new windshield wipers that feature 160 ducts on each side and project heated fluid evenly for impeccable visibility at all times. Then there’s the Frontbass sound system for all you audiophiles. The car’s sound system was carefully considered at the design stage, as evidenced by the integrated subwoofers next to the passengers’ feet and fire wall. Top up or down, this vehicle is a veritable concert hall!
On the road
You’ll be delighted by the smooth and rich purr of the V8 turbo that, of course, goes hand in hand with this kind of car. Thanks to its increased power, this engine shaves a few hundredths of a second off the 0-100 km/hr time, covering the distance in about 4.6 seconds. The SL has always been considered a grand touring car rather than a pure sports car. That’s still the case for 2012, although its reduced weight makes the vehicle more dynamic. The improvement is noticeable, especially in front. When pushed a little harder, the car understeers a little less. In Canada, all models will have an active suspension that lessens roll in turns by varying oil pressure in the shock absorbers. However, my short test drive didn’t give me the opportunity to truly test this system’s efficiency. Maybe next time.
I’m particularly fond of the set-back driving position and the long roadster hood. That’s where the SL has an edge on some of its rivals with central or rear engines. Press the roof command and in about 20 seconds you’ll be able to appreciate the pleasures of driving with the top down.
The 2012 Mercedes-Benz SL remains true to the tradition of its class. Its reduced weight and fuel consumption will definitely praise-worthy. And what’s more, it handles like it always has on the road. They definitely didn’t want to make too many changes to this winning recipe.
