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Silex Power announces 1,000 km-range Chreos high-performance EV


February 27, 2013

Silex Power's newly-announced Chreos EV

Silex Power's newly-announced Chreos EV

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Alternative energy company Silex Power has announced its intention to enter the electric car market at the very top. The company intends to make a limited run of 300 units of its luxury Chreos EV by 2015, and, judging from the press release, the car boasts luxury, if perhaps aspirational, statistics to match – particularly with respect to range and charge times.

The car, which Silex Power describes as an upmarket electric fastback sedan, will apparently be 5.42 m long, 2.16 m wide and 1.49 m high (17.78 x 7.09 x 4.89 ft) of carbon fiber.

Silex says that the car will be driven by four electric motors (yes, one in each wheel) delivering 640 bhp (477 kW) and 4,400 Nm (3,245 foot pounds) of torque. The company reckons that this will see the Chreos from 0 to 100 km/h (62 mph) in under 2.9 seconds. The Chreos will be limited to a comfortable top speed of 300 km/h (186 mph).

Clearly Silex is aiming for luxury performance, and this extends to mileage. Though a specific battery spec is not stated, performance criteria are. Silex is shooting for a remarkable range: 1,000 km (621 miles), and that's cruising at 125 km/h (77 mph). Silex indicates that the Chreos's range will be extended with a number of performance modes that can selected automatically by the vehicle. In economy mode, the Chreos effectively becomes a rear-wheel drive vehicle.

Perhaps most remarkable is Silex's so-called "Hypercharge technology" which it claims will fully charge an empty battery in 10 minutes, thank to some sort of modified cathode. This appears to be a proprietary system requiring a 10,000–15,000 V source. Though the Chreos will also be chargeable using a domestic supply, charge times aren't given.

Clearly, renderings and numbers do not an EV make, and it's hard to tell to what extent we're looking at smoke and mirrors. Silex has pledged to reveal more information, including interior shots and technological specifics in April.

Silex indicates that other non-luxury EVs may follow.

A promo reel is below.

Source: Silex Power, via plugincars

About the Author
James Holloway James lives in East London where he punctuates endless tea drinking with freelance writing and meteorological angst. Unlocking Every Extend Extra Extreme’s “Master of Extreme” achievement was the fourth proudest moment of his life. All articles by James Holloway

Undoubtedly the automotive equivalent to vaporware, whose only purpose is to keep people from buying a Tesla or any other REAL electric vehicle.

Fritz Menzel

"640 bhp (477 kW) and 4,400 Nm" ~very achievable.

"0 to 100 km/h (62 mph) in under 2.9 seconds. The Chreos will be limited to a comfortable top speed of 300 km/h (186 mph)." ~with above torque, and low drag also achievable. But sustained for how long?

"Silex is shooting for a remarkable range: 1,000 km (621 miles), and that's cruising at 125 km/h (77 mph)." This is the part I would question. ~Achievable, but would make the vehicle very heavy. Possibly very poor handling.

" charge an empty battery in 10 minutes, thank to some sort of modified cathode. This appears to be a proprietary system requiring a 10,000–15,000 V source. " ~Sounds extremely dangerous to end users unless charging remotely activated. Conceivable that the low current would substantially reduce heat during charging through some kind of modified battery bank. Would need to see this in action.

In summary, can see this vehicle being Lambo price if built.


I don't really like the look, but I suppose it is difficult to make a large vehicle look sexy. The Tesla S looks beter though.


Over three thousand pound-feet of torque?


go out and hire a new designer. clearly this one isn't working out. sounds like it'd be a good car though

Mark Hover

Never.... Going... To... Happen.

Joseph Boe

Hmm, if the specs are even remotely achievable, the technology will certainly start being applied to more consumer obtainable cars. That part is exciting.

That said, while the design isn't completely horrendous, it does look like a genetic mutation - combination of Porsche Panamera, BMW 550GT, and an Alfa sedan.

Also, if those are really LED lit wheels, please, just no...

Vince Pack

I guess if you have the money anything is possible

Graham HomeMaintenance

The Nissan Leaf claims 0.212 kWh/km. Let's say that at worst, the Chreos is half as efficient, that means a 0.42kWh/km. For a range of 1,000 km you'd need a minimum capacity of 420kWh of on board storage.

Some of the best Lithium Ion power density is at around 245 Wh/kg. This would give the battery a maximum weight of 1714kg.

So if the Chreos has similar efficiency as the Nissan Leaf (unlikely), the battery pack weight is at a minimum 857kg.

Just how heavy will the Chreos be? It might exceed axle load limitations on some road or bridges!!

Guillaume Levesque

Whatever...another business plan that will have to catch up to the reality of the Tesla and other already out of the gate products (none of which have managed to make a profit).

I see their design strategy though: move the wheels out to the corners and use a long, wide wheelbase to provide space for the battery pack(s) to breathe (and be surrounded by liquid cooling). With sufficient torque the Bentley-like weight will only be an issue if proper energy recapture is not utilized. Also, it may be that they have stumbled onto something that other designs have missed re: with enough gears weight may become an advantage in energy recapture.


and these high speed charge centers are going to be located where ? I don't see local gas stations buying into this tech for high speed charging of such a low number of cars.thats the problem electric vehicles face right now great for short trips but not very good for a long trip( top gear did an episode showing this and how hard it was to charge your vehicle on a long trip away from home)

Scott Miller

How about a long-range EV car that's affordable for most of us? In the real world where the common man/woman lives, this type of car is meaningless. Apply this tech and get us a car to replace the fossil fuel burners!

Phillip Noe

Much "American Group Think" demonstrated here! nanotechnologies have graphine super capacitors - that operate at higher voltages, that can be pulse switched with FET graphite transisitors, that have no 'internal battery resistance" that reduces battery efficiencies, require very much smaller, lighter pulsed DC motors, take far less space, store power at much higher voltages, provide power at high voltage, low amperage, requiring lighter wires. In other words they epoch the current (failure prone) American Lithium idiom, and reach into the 21st century and well outside the "American Ivory Tower box". These newer style power storage systems and subsequent systems exploiting surface electrochemical phenomonon will provide very high voltage DC pulsed systems that as far as total power stored for a given size will far exceed the olden days, low voltage, high current chemical systems and their kind.

Bruce Miller

What everyone seems to forget is the "powers that be" in cahoots with the large banks, oils corps etc do NOT want efficient lower energy vehicles that do not use THEIR oil. They want to keep the monopoly of oil burning for transportation of the masses and until THEY are ready to move to the next monopoly we won't be allowed to have the tech.

Tesla (Inventor not Car) made an invention that gave FREE Energy from magnetic/universe energy all around us, and the JP Morgans of the world did everything in their power to ensure he never got these things to market. They burned down his Lab, they withheld funding and gave him funding for other things that kept him busy to manipulate the best inventor the world ever had. I HATE these banker/oil corp types who think THEY Rule the world and are withholding the advancement of the human race for their own ends.

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