SLS [Official] Mercedes-Benz SLS AMG Roadster


The Mercedes-Benz SLS AMG (C197 / R197) is a front mid-engine, 2-seater, limited production sports car developed by the Mercedes-AMG division of Mercedes-Benz, with the assistance of David Coulthard. The car is the successor to the Mercedes-Benz SLR McLaren. SLS stands for "Super Leicht Sport" (Super Light Sport).
I know what you’re thinking. Mercedes-Benz SLS AMG roadster: the open top version of one of the most sought-after supercars on sale in the UK right now. It’s low, sleek and sufficiently stylish to stop pedestrians in their tracks, but it can’t possibly compete with the SLS coupé with the way it drives, right?

It is a preconception that has been built around many a high-priced open-top, but in this case it doesn’t apply because while the SLS roadster lacks the aluminium roof of the SLS coupé, it doesn’t suffer for it.

What's it like?

With no exaggeration, the roadster is an even more convincing proposition to drive than the coupé. Of course, there’s masses of grip and it stops with great conviction, but where the soft-top really presses its case are in more subtle areas of its handling repertoire, many of which are improved over the fixed-roof model.

The engineering changes Mercedes has made to counter the loss of rigidity caused by the absence of a fixed roof provide the SLS roadster with an even more fluid feel to its handling than the coupé. Pushed hard, it feels better balanced and, with its overzealous traction control turned off, it is nothing short of sublime. The SLS roadster possesses better body control and greater levels of feedback than the coupé, and if there is any lack of rigidity it is never felt. Its ride characteristics are vastly improved, too. In fact, the modifications are so successful that Mercedes is planning to bring them to the coupé as a running change for the 2012 model year.

It’s not lacking in performance, either. Running the same 6.2-litre V8 as the coupé, the roadster produces 563bhp and 479lb ft of torque, and manages an official 0-62mph time of 3.8sec, while top speed is put at a bouffant-rearranging 197mph.

And without a roof to filter out its soundtrack, there are tiny nuances in the exhaust note evident on the roadster that you just don’t notice with the coupé, whether it be entertaining pops and crackles on a trailing throttle or the Nascar-grade volume on a wide open throttle.

But perhaps the roadster’s most persuasive sales attribute is its striking appearance, which is nothing sort of spectacular. The retro-inspired exterior, credited to British-born Mercedes designer Mark Featherstone, lends itself well to the open top treatment, giving the roadster a satisfyingly low-slung look that sets it apart from its fixed roof sibling.

The snug-fitting roof uses three layers of fabric and incorporates a heated glass rear window. It folds into its position within the forward section of the boot in just 11 seconds and at speeds of up to 31mph. When stowed, the upper part of the roof remains exposed, allowing the SLS roadster to retain an impressive 173 litres of luggage capacity, just three litres less than the coupé.

The doors have been altered, too. Out go the coupé’s gullwing units, replaced by more conventional front-hinged doors, which are significantly lighter and make entry a good deal easier. Other changes include new door trims, fixed rollover hoops, altered rear fenders and a new bootlid that incorporates the third brake light.

With the roof down, the roadster is impressively refined. There is some buffeting but not enough to drown out conversation, at least not until you hit three-digit speeds. Production versions will also get a plastic element that slots between the rollover hoops to further cut the flow of wind.
Should I buy one?

In short, the SLS roadster is a compelling, if pricey, proposition. And not just on the strength of its elegant good looks, but its overall driving appeal and aural attributes, too.
Greg Kable

Mercedes-Benz SLS AMG Roadster

Price: TBA; Top speed: 197mph; 0-62mph: 3.8sec; Economy: 21.4mpg; CO2: 308g/km; Kerb weight 1660kg; Engine type, cc: V8, 6208cc naturally aspirated, petrol, front, longitudinal, rear-wheel drive; Power: 563bhp at 6800rpm; Torque: 479lb ft at 4750rpm; Gearbox: seven-speed double clutch transaxle

Mercedes-Benz SLS AMG Roadster - Road Test First Drive - Autocar.co.uk
 
Wow the roadster looks so much better than the Coupe. Mercedes knows this....just as the coupe's sales cool just a touch they come out with the more desireable roadster.


M
 
2012 Mercedes-Benz SLS AMG Roadster

In creating a roadster version of the SLS AMG, Mercedes-Benz had to do away with the car’s signature gullwing doors, instead fitting regular old conventional doors. The resulting car is as delightful as the gullwing version, but some people worried that ditching the doors would mean the roadster would lose what is special about the SLS.

Fortunately, the SLS has plenty of special to go around. To our eyes, the car’s long-hood, short-deck proportions work better on the convertible than the coupe. With the top down, it looks lower, wider, and angrier. Without a roof or doors to distract from the basic shape, curves we hadn’t noticed emerge from the fenders and dovetail into the rear end. Lower the fabric roof (it can be raised or lowered in 11 seconds at speeds up to 31 mph), and you’ll be thunderstruck by the burbling, barking V-8 sounds pouring unimpeded into the cabin. The exhaust booms annoyingly at idle, but it turns wicked once the engine gets to work.

That engine, of course, is the same 6.2-liter V-8 built by AMG that you’ll find under the hood of the coupe. Its 563 hp are channeled through a rear-axle-mounted seven-speed dual-clutch automatic gearbox. Requests for upshifts and downshifts are handled quickly and with seemingly greater responsiveness than in the last SLS AMG coupe we tested. Simply pull the paddles, and gearchanges happen instantly. In full-automatic mode, the dual-clutch gearbox does a fine imitation of a torque-converter box, its mimicry going so far as to produce idle creep when you lift off the brake.

Don’t Be Such a Stiff

Additional bracing in the dashboard, reinforced sills, the fixed roll hoops behind the seats, and a rear-suspension brace stiffen the aluminum structure to the point that we could not detect any shakes, shudders, or shimmies. AMG claims the convertible’s body in white (the car’s structure stripped of all components) weighs only 4.5 more pounds than the coupe’s. Factor in the motors and mechanisms for the top’s operation, however, and curb weight rises 88 pounds. Based on the weight of the last gullwing coupe we tested, we predict the roadster will weigh in at about 3850 pounds. With 563 hp and 479 lb-ft of torque, the extra weight goes unnoticed. Like the coupe’s, the roadster’s gearbox offers a race start (launch control) setting that raises engine revs and dumps the clutch. Once the wheelspin settles, we expect a coupe-matching 3.5-second 0-to-60 time. Top speed is limited to 197 mph.

Handling is identical to that of the gullwing SLS. The engine still sits aft of the front axle line, lending a precise and quick turn-in. How important is the engine placement? Next time you’re in the grocery store, put the heaviest item as far forward in the cart as you can and try to turn. Then move that item back a few inches, and see how much more willing the cart is to turn. Those same physics apply here. Massive tires offer equally massive grip that is easy to exploit. There are no false moves, no twitchiness, no I’m-going-to-put-you-into-this-ditch threats.

A Supercar, but Still a Mercedes

That user-friendliness is consistent throughout the SLS. With the top down, the roadster feels spacious in a way the gullwing version can’t match. Top-down trunk space is even the same six cubic feet as the coupe holds. The SLS we drove came equipped with AMG ride control, an option that adds electronically adjustable shocks with three damping settings. Keep them in comfort, and the SLS rides like a sporty luxury car. (The roadster gets the adjustable shocks first; they will be added to the coupe later.) Airscarf, Mercedes’ vent at the base of the headrest that blows warm air onto your neck, will be offered.

Despite the wild shape and performance, the SLS is a car you’d want to drive to work or use to run errands. There aren’t any supercar peccadilloes such as poor visibility, a nose that scrapes on inclines, an outdated navigation system (or worse yet, one sourced from Chrysler), or a jerky gearbox. When you use the SLS like a regular car, it feels a lot like an SL63 AMG. But start exploiting the SLS’s capabilities, and it feels as alive and as exotic as it looks. No official pricing has been announced, but a base price of $198,000 plus a $1700 gas-guzzler penalty is our estimate. That makes this SLS roughly $10,000 more than the gullwing coupe. Losing those doors might make the roadster a little less special, but overall, it feels like the better car.

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Driven: Mercedes SLS AMG Roadster review and pictures | evo

The new Mercedes SLS AMG Roadster loses the coupe's gullwing doors - but can it deliver a similarly focussed driving experience?

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What is it?

The £176,895 SLS AMG roadster is the new convertible version of the gull-wing AMG SLS coupe. Naturally, lopping the roof off means the distinctive (but controversial) doors of the coupe had to go and are replaced by a pair of conventionally hinged doors instead.

Technical highlights?

The first thing to be aware of is the drivetrain in this SLS roadster is identical to the SLS coupe in every way. This is excellent news, as the 571bhp V8 engine in the SLS is a cracker and delivers its ample power to the road via the rear mounted, seven-speed DSG gearbox, which is bolted directly to the front/mid positioned engine via a torque tube running down the centre of the car.

Losing the roof has only added an extra 40kg to the kerbweight (now 1660kg, including a 75kg driver and luggage), mainly because Mercedes chose to use a folding three-layer fabric roof, a much lighter solution than the folding metal roof used on the SL. This can be raised or lowered at speeds of up to 31mph, and operates in just 11 seconds.

AMG claims that minimal strengthening to the chassis was required to compensate for the lack of roof, as a roadster version of the SLS was planned from the start. Tweaks include thicker aluminium for the sills, a reinforcing cross-member under the dash and another brace positioned behind the seats. The end result is a torsional stiffness that’s almost identical to that of the SLS Coupe.

What’s it like to drive?

Very like the SLS coupe, unsurprisingly. If anything, it’s slightly better, thanks to the driver now being engulfed in the rousing soundtrack of one of the best V8 engines ever produced by AMG.

Losing of the roof seems to have had zero effect on the driving dynamics too, in fact, the SLS roadster seems to display even less roll than the coupe through demanding direction changes, so I suspect the roll centre of the chassis is lower now the roof has gone. This helps keep turn-in super sharp - understeer never appears on the dynamic menu - and this agility makes the SLS a very different drive to the regular Mercedes SL.

AMG has also introduced optional electronically adjustable dampers on the roadster, with three settings, Comfort, Sport and Sport +, a system fitted to the test cars. It’s a worthwhile option as it does deliver a better ride than the standard, non-adjustable set-up.

The 571bhp, 6.2-litre engine produces oodles of torque from 1000rpm onwards, making this a very easy engine to live with in real world driving but when the opportunity presents itself, this engine delivers the goods in a spectacular way. There’s serious power on offer here, with the SLS capable of sprinting from 0-62mph in 3.8secs and going on to an electrically limited 197mph (the speed limit of the tyres).

The only fly in the ointment is the DSG gearbox sometimes struggles to keep up, not changing quite as quickly as you’d like, especially on downshifts. It hardly matters, as the engine has so much punch in every gear, so you can leave it in a higher gear and still make spectacular progress.

How does it compare?

This is where it all starts to go wrong, as the SLS might only be £8500 more than the SLS Coupe but that still means it costs a whopping £176,895 and that’s before any options are added (there’s plenty to choose from, too).

That’s a £70,000 premium over an SL63 AMG and £60,000 more than a V10 R8 Spider. To make matters worse, the Ferrari California is £30,000 cheaper and no matter how good the SLS Roadster is to drive, there’s no doubting it’s a very expensive bit of kit.

Anything else I need to know?

The roadster will go on sale alongside the coupe, with AMG predicting the soft-top will account for 40 percent of sales. The roadster is expected to particularly popular in the US, but anyone seriously considering an SLS should look at one – it drives beautifully and the driving dynamics haven’t been effected by the loss of the roof, while at the same time it’s gained an off-the-scale soundtrack.

The SLS AMG Roadster is one of a new breed of supercars which deliver stunning performance, yet are incredibly easy to live with day to day. That’s an intriguing combination.
 
Impressive rating from EVO. I can't wait to see this one in person. Could now be my favorite Mercedes.


M
 
Is it only me or does the SLS Roadster channel Porsche 911 Cab when viewed from the 3/4 rear? Remove half the nose, and you have a 911 Cab-like silhouette.
 

Mercedes-Benz

Mercedes-Benz Group AG is headquartered in Stuttgart, Germany. Established in 1926, Mercedes-Benz Group produces consumer luxury vehicles and light commercial vehicles badged as Mercedes-Benz, Mercedes-AMG, and Mercedes-Maybach. Its origin lies in Daimler-Motoren-Gesellschaft's 1901 Mercedes and Carl Benz's 1886 Benz Patent-Motorwagen, which is widely regarded as the first internal combustion engine in a self-propelled automobile. The slogan for the brand is "the best or nothing".
Official website: Mercedes-Benz (Global), Mercedes-Benz (USA)

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