Saturday 1 May 2010

Electric Mercedes SLS AMG On It's Way

Mercedes had recently announced it's plans to produce an all electric version of it's flagship SLS AMG by 2015. However, it has just been confirmed that Mercedes are now brining forward the launch of said electric supercar to as early as 2013, 2 years earlier than planned presumably to get a better foothold in the race for the electric car market. AMG managing director Volker Mornhinweg says he has already driven the prototype cars and promises they will be as exciting as the petrol powered SLS AMG they are based on. "I can tell you that it is an amazing kind of experience" he said.
Of course, Volker being slightly biased one might expect his praises of the car, but the figures might suggest that he's right. The car is to feature 4 motors at each wheel with a combined output of 400 kilowatts equating to 536bhp, no spring chicken then! And due to the inherent nature of electric motors the available torque is staggering at 649ft/lb, thats 170ft/lb more than the existing petrol version, pretty awesome I think you will agree. As an added bonus, with their being a motor at each wheel the electric SLS will of course be all wheel drive, allowing all of that power to be put down with brilliant potency as we are seeing from the likes of the 'un-driftable' Murcielago SV.
“We can remove the combustion engine and transaxle and make no changes to the body, and we can put in two motors with the gearbox in the rear, two motors and the gearbox in the front and we can take the center console as a battery place – it looks like a T and it is perfect,” said Volker.
The car is said to have fantastic handling too because the motors are able to adjust the power going to each wheel and now the traditional coilovers have been beefed up with a pushrod actuated system that also removes the need for double wishbones found on the petrol models front suspension.
However, while all this new tech is fantastic stuff, it does carry a weight penalty, and at just over 4,600 pounds it weighs nearly a 1000 pounds more than the current SLS AMG. Ouch.
Though despite this extra weight Obias Moeres, AMG’s head of vehicle development, says it “covers its weight very easily,” Once more that is what you would expect any self respecting head of AMG development to say, but, with all that torque Moeres goes on to say it's 0-60 time is under 4 seconds and a top speed of 118mph (limited to maximise range) putting it in the same league as the Tesla Roadster, which, in comparison is a matchbox with a lego technic motor in it. so well done AMG.
Now, the setback with every electric car at the moment is the notorious battery charging time, and a good comparison to this is always the Tesla Roadster as from 'empty' to 'ready' it can take 16 hours fora full charge. I know i know it still pains me each time i write it. Despite all the above fantastic performance figures then you would expect the electric iteration of the SLS to be around the same time or even worse due to it needing extra power to pull the giant mass that it is along. But you would be wrong. Using the same lithium-ion batteries as found in all current and future production electric cars, the electric SL AMG can reach an 80% charge in... wait for it... 20 minutes! Now this has to be based on input from a Level 3 440 volt charger, but nonetheless this is incredible stuff. And by the time this thing is in showrooms in 2013 Level 3 chargers will be more accessible and probably be an optional extra with the car!
So all this leaves us to one last thing. The price. After reading back through this post the electric SLS AMG is about the first electric car that really does sound desirable and there is a reason for that, because all of that fantastic technology and performance figures is expected to cost you over a quarter of a million pounds. I think i'll leave it there for now then.
Go well.

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