Lucid vs Cybertruck

[cybercricket]

Right, but the right tires can mitigate this, trains have less rolling resistance than the a Civic(extreme example I know). On my Model S I would air up to 60PSI and get better range, at the loss of comfort.

What percentage of rolling resistance is due to tires versus the bearings ?

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[Roketman]

From Google:

The Tesla Cybertruck is 223.7 inches long and 86.6 inches wide with the mirrors folded.

The Lucid Gravity electric SUV is 198.2 in long, 78.7 in wide, and 65.2 in high.

My eyeballs can verify that there is a difference in aerodynamics.

is that enough to make up a 40-45% difference in range?

 

[Gaximus]

What percentage of rolling resistance is due to tires versus the bearings ?

I couldn’t say for sure. But metal bearings in metal raceways, would be negligible compared to squishy rubber on pavement. I’d be if it was more than half a percent. Probably much less.

 

[SCTesla]

From Google:

The Tesla Cybertruck is 223.7 inches long and 86.6 inches wide with the mirrors folded.

The Lucid Gravity electric SUV is 198.2 in long, 78.7 in wide, and 65.2 in high.

My eyeballs can verify that there is a difference in aerodynamics.

is that enough to make up a 40-45% difference in range?

The MX gets 88 fewer miles than the Model S on paper despite having the same battery packs and motors due mostly to Aero. Add in there the efficiency of the motors, that's plenty to make up range. Lucid is also a lot more conservative in their range estimates and that's why we see their "real world tests" and 70 mph test closer than Tesla.

 

[Gaximus]

So after seeing this post and not having heard of this “SUV” I looked it up, because my wife soon be in the market for a 7 seater. I went straight to the interior and was impressed, sent it to my wife to see what she thought and all I got back was “Hard No, I’m not buying an electric minivan.” Then I took a look. This thing has no resemblance of an SUV at all. It’s just a minivan. That’s why it has good range, aero.

 

[dalton108]

Well the other thing about the gravity that out of spec motoring demonstrated in their coast to coast race is that yes it’s super efficient but also it’s highly susceptible to perturbations such as weather and wind which dramatically reduce its range. On paper it should’ve beat the Porsche, but it did not. If I remember correctly it barely beat the M3 despite its huge stated range advantage.

I am however a well-known critic of EM’s preposterous statement that nobody needs 500 miles.

Yes we do! Either that or way more chargers and a far faster charging curve. Deliver either ASAP!

 

[cybercricket]

Well the other thing about the gravity that out of spec motoring demonstrated in their coast to coast race is that yes it’s super efficient but also it’s highly susceptible to perturbations such as weather and wind which dramatically reduce its range. On paper it should’ve beat the Porsche but it did not. If I remember correctly it barely beat the M3 despite its huge stated range advantage.

I am however a well-known critic of EM’s preposterous statement that nobody needs 500 miles.

Yes we do! Either that or way more chargers and a far faster charging curve. Deliver either ASAP!

If you have a larger battery for more range but the same rate of power delivery, it will take longer to charge it while you will also lose on efficiency due to added weight.

 

[dalton108]

If you have a larger battery for more range but the same rate of power delivery, it will take longer to charge it while you will also lose on efficiency due to added weight.

True, but my problem is impossibility.

I still can’t get the parts of my state and back. If my CB had a zero to 60 of 3.0 or 3.5 seconds and I could get 400, 450 or 500 miles, I would be in business. Currently, I am not.

Those are the stakes.

 

[cybercricket]

True, but my problem is impossibility.

I still can’t get the parts of my state and back. If my CB had a zero to 60 of 3.0 or 3.5 seconds and I could get 400, 450 or 500 miles, I would be in business. Currently, I am not.

Those are the stakes.

The way you phrased your earlier comment I've concluded that your issue was the convenience of longer trips and not the overall feasibility.

 

[mongo]

Well the other thing about the gravity that out of spec motoring demonstrated in their coast to coast race is that yes it’s super efficient but also it’s highly susceptible to perturbations such as weather and wind which dramatically reduce its range. On paper it should’ve beat the Porsche, but it did not. If I remember correctly it barely beat the M3 despite its huge stated range advantage.

Yeah, the issue is the lower your Wh/mile, the more of hit your range takes if something adds to it.
100kWh pack:
200Wh/mile 500 mile range, +50Wh/mile = 400 mile range, 20% drop
250Wh/mile 400 mile range, +50Wh/mile = 333 mile range, 17% drop
350Wh/mile 286 mile range, +50 Wh/mile = 250 mile range, 13% drop
400Wh 250 mile range, +50 = 222 miles, 11% drop

True, but my problem is impossibility.

I still can’t get the parts of my state and back. If my CB had a zero to 60 of 3.0 or 3.5 seconds and I could get 400, 450 or 500 miles, I would be in business. Currently, I am not.

Those are the stakes.

I identify with that. If there was an approved CCS adapter, it would be somewhat better.
Waiting to see range extender specs.

 

[tbuck]

The other important element to consider in EPA range is how that number is achieved - at 65 MPH on the highway, which is then blended with "street driving" for a blended range. Combined with what others have said - drag, weight, etc., and you can see the difference.

 

[BannedByTMC]

It's 100% aero and motor efficiency. They make the most efficient motors, period.

Tesla Model 3 motors were around 97% efficient I believe, you can't get to 100%, so maybe the best improvement would be another 2%. A wider efficiency curve would also help but it's not likely to be more than single digit % improvement.

 

[cybercricket]

Tesla Model 3 motors were around 97% efficient I believe, you can't get to 100%, so maybe the best improvement would be another 2%. A wider efficiency curve would also help but it's not likely to be more than single digit % improvement.

Google search suggests highest recorded electric motor efficiency is 97.61% So if M3 achieves 97% efficiency there isn't really any room left for improvement.

 

[mongo]

Google search suggests highest recorded electric motor efficiency is 97.61% So if M3 achieves 97% efficiency there isn't really any room left for improvement.

98% would be 33% less inefficient, tons of room ??
More seriously, peak efficency is only one point. Useful gains can occur at the other points in the torque RPM map.

 

[Mini2nut]

Lucid has a very efficient drivetrain and it's the size of a suitcase. They claim 5.0 miles per kWh makes the Lucid Air is the most efficient EV to date.

The CEO recently stated that he expects future Lucid revenue will be 20% from vehicle sales, 80% in drivetrain licensing fees. He claimed they are currently in negotiations with some large auto manufacturers behind the scenes to pay Lucid licensing fees to use their super efficient EV drivetrain.

The analogy would be having a powerful Intel processor in multiple brands of laptop computers.

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