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Old 08-22-2015, 04:41 PM   #1 (permalink)
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Immortus

FYI
for those with ~$300,000 or so.
Immortus Solar BEV

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Old 08-22-2015, 07:22 PM   #2 (permalink)
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I could make that much money in 10 seconds. Well, maybe -$300,000.
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Old 08-22-2015, 08:18 PM   #3 (permalink)
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Read the linked page. After I looked at those nicely arranged pixels on that image, I just skimmed. Seems smarter to give the money to Elio lol
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Old 08-27-2015, 04:37 PM   #4 (permalink)
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Um, right.

500kg - 1200lbs - projected weight.

I guess the "team" hasn't worked around cars very much.

The 24kWh of Nissan Leaf cells I have sitting in the shop weigh about 384 lbs. 1/2 that - 12kWh - close to their 10kWh is 192lbs.

The 50kW Toyota MGR motor/gearbox I have in the shop weighs 92lbs dry.

Believe me, I'm trying very hard to re-design the motor to reduce weight. And those batteries - that is the cell weight alone, without any box to protect them. Chargers and motor controllers also weigh something. OH, then we need a car - steering, suspension, wheels, windshield, seats etc etc.......

Good luck! You're shooting for less than weight of a completely optimised, stripped out F1 racecar.
https://en.wikipedia.org/wiki/Formula_One_car
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Old 08-27-2015, 04:51 PM   #5 (permalink)
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Well...

It is not supposed to be an ordinary car.

The Nuna 7 solar racer did weigh only 190 kg, way less than half their target.
The Stella 4 seater solar racer weighed only 380 kg, still considerably less.

So who knows? They may pull it off.

Nuna 7 and Stella side by side:
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It always takes longer than you expect, even when you take into account Hofstadter's Law.
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Old 08-27-2015, 06:04 PM   #6 (permalink)
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" It is not supposed to be an ordinary car."

Hmmm, the F1 cars I saw in the Ferrari museum were not very ordinary. Think carbon fiber suspension, carbon monocoque body, carbon fiber ENGINES with titanium metal bits here and there.

I've personally worked with competition human powered vehicles and super milage vehicles. Both were built to work within the narrow confines of the competitions. The super-milage vehicle I designed was a carbon monocoque that had a aerodynamic shape fine tuned in a real wind-tunnel.

When someone says a vehicle will carry two people and their luggage AND be capable of 150km/h AND "drive like a truly nimble and balanced sports car" You are adding a LOT of requirements that will result in forces requiring components that weigh accordingly, even if they are made of carbon fiber.

But, they may pull it off. It will be interesting to see where this goes.
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Old 08-27-2015, 06:11 PM   #7 (permalink)
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It does not need to harness 800+ horsepower, take corners at 4G and brake at 6G, make 200 mph crashes survivable and be Pastor Maldonado proof...

Their battery is only 10 kWh. Stella has a 15 kWh battery. They can win there, at least considering weight.
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It always takes longer than you expect, even when you take into account Hofstadter's Law.
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Old 08-27-2015, 08:27 PM   #8 (permalink)
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Related Article a few more details

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Old 08-27-2015, 10:36 PM   #9 (permalink)
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Reading through the Gizmag article... seems more realistic... but still, I doubt you can sell a hundred of these. A limited run of about a dozen vehicles seems more realistic.

And even then, you'll need to release a prototype to gain any traction with buyers.
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Old 08-28-2015, 04:38 PM   #10 (permalink)
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The XL1 sits in at 795. I'll believe it when I see it.

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