Cybercab’s INSANE Efficiency Will Blow Your Mind

[@joeybagadonuts1206]

This series is the best info on Cybercab to date. Not even close. Great job!

[@garyrooksby]

Fabulous reporting, Brian. Amazing data from an amazing team but for us to get access to this amazing info we rely on you, Brian, and you deliver in spades. Thank you so much!

[@R56Cooper]

Thanks for all the great insight!🎉🎉

[@robb233]

Window switches are important. You don't want to be fiddling around with menu options in an emergency. Especially as someone who doesn't speak english as a first language, the elderly, those with vision problems, etc etc etc. Thanks for all the info.

[@goldreverre]

yes, some switches make for a better user experience. If cutting to the absolute minimum compromises the experience, then it's false economy. I want a car to feel intuitive and a bit luxurious. Not cut down to the bone like some low budget bus ride.

[@Lawrence7of9]

Claustrophobic or smoker

[@rowanbroekman3929]

Auto open 5 seconds after crash

[@jebes909090]

@@rowanbroekman3929 lol. it waits till you're crispy

[@GROND15]

@@rowanbroekman3929 if the airbags deploys the battery connection is severed, there is no more power.

[@DowneastUS]

And of course KZbin didn't let me know part 2 posted ... looking now. Keep of the great work! It's much appreciated by a lot of us.

[@FutureAzA]

It's always a pain when KZbin does that.

[@RonLWilson]

This might be the Model T for the 21st century in regard to manufacturability and cost.

[@rajeshramanathan8290]

Brian . Amazing and I cannot express in words the value and info you bring and with Herbert podcast and all truly incredible.

[@ericgregori]

Thanks!

[@FutureAzA]

Thank you so much!

[@gregorstoutbelly5598]

Appreciate all your hard work Brian.

[@harryhahne]

Well done. This is a great series. It is amazing that Tesla has given these engineers permission to release as much information as they are. They seem to be allowed to answer more specific questions than they were at the Cybercab reveal evening. It just takes someone like you asking the right questions

[@tomricharme3761]

Thank you for the detailed reporting. Have seen no other podcast with this kind of detail.

[@kyle140210]

I swear I saw the cybercab headlights projecting onto the road when Elon was riding it at 10/10. Am I wrong or is there more to the headlights?

[@rd500fan4]

Great insights in relation to the Robotaxi, most of which are new to me. Well researched, thought out and presented. Thanks Brian!

[@FutureAzA]

Appreciate the kind words! Whenever I get access, I bring the heat. Now we just need to work on getting me better access.

[@travisjazzbo3490]

This man deserves a lot more subscribers. Great job Brian!

[@ChunkyMonkaayyy]

THIS IS MY VIBE!!! The Cybercab’s simplicity and practicality speak to me. It reminds me of my base model Tacoma that I love. Excited to see where it goes and hopefully I can get one someday. Thanks for the awesome info and thoughtful content!

[@tlz8884]

Great quote "the optimal size for the optimal life" , applies to many things including finance.

[@darrenschmitz2712]

Love the details your found on the Cybercab, things like them blocking off the rear hatch with a panel lowering the HVAC requirements. On the wheels, bigger wheels will also go over bumps and holes better, (does fall into it as much), making more for a smoother ride everything else being equal.

[@ReinReads]

I think you mentioned in the first video but a big one for efficiency is the small FWD motor. From what’s been gleaned it will only need to get the vehicle up to 75mph/120kph with a gentle acceleration. Small, lighter, cheaper, more efficient, easier to install. I can’t wait to see a tear down of the production version.

[@davidcarruthers7086]

Happy to support, Brian. Always great content.

[@FutureAzA]

You rock!

[@anton_grahn]

They are not ”low profile tires”! 225/60 R21s in the back and 225/60 R18s in the front means: relatively narrow, high aspect ratio and large outer diameter, perfect for comfort and efficiency! Only possible downside is aero as you say, but it is mitigated well with the aero caps!

[@lordinquis8r679]

Thanks, Brian! You’ve turned the corner on efficiency.

[@jeffsummers3409]

Great video series and great insights. Thanks for all of you work putting this stuff together.

[@SHOE53]

Thinking any city with a airport of any size with passenger service these Cybercab will be a game changer.👍

[@OVB_NL]

Such excellent reporting - thanks for taking the time to make this content for all to see...a real eye opener!

[@TheDude_0-0]

Thanks for satisfying my curiosity about the wheels, clever stuff!

[@michaelbest4356]

Thank you and your colleagues, for your constant, comprehensive and detailed updates!

[@andreiandolya]

great job with the video. I have actually went to Santana Row yesterday to check it out I person :) still bummed that I didn't get a chance to talk to engineers

[@ronaldgarrison8478]

Very interesting thoughts, that I had not thought before. Enthusiastic thumb up.

[@doug3691]

"Teardropped" was not on my bingo card. Thank you, Brian, extraordinary details! (And terms.)

[@carloslemos6919]

1 - Large total diameter reduces rolling resistance. 2 - Smaller wheels with given a total diameter also reduces rolling resistance, basically the springiness of the tire absolves, ( *than releases* ) energy from small road imperfections. If the wheels were larger, the tire wall becomes smaller, more stiffer, vibrations pass through tire -> wheel -> shock absorber, the later *dissipates* energy in the form of heat. That is why smaller wheels (not tire + wheel) are more efficient. 3 - Small tire width also reduces rolling resistance. 4 - The width of the tire limits how big the sidewall can be, otherwise they will fold and come out of the rim when turning at high speed.

[@t.r.766]

It was great to see you Brian or as I called you out it’s “Mr Aza “. You have done a great job with your coverage of this spectacular event!

[@FutureAzA]

Thanks for the support! And as I told you then, Mr. AzA is my father. ;)

[@mzamatt]

Great video man. You are killin it!

[@gregbailey45]

Great work, Brian! So much to learn about the Cybercab!

[@FutureAzA]

More to come!

[@carydeakin4884]

Thanks for the video, Brian! One point - I am quite certain a larger tyre diameter increases rolling resistance, not decreases. The greater the tyre diameter, the larger the surface area in contact with the road surface. Appreciate all of the info on Cybercab!

[@Paranoid989]

Thank you Brian. Did you hear anything about the Laser Headlights we saw at We Robot? No one talks about this 🤷🏻‍♂️

[@cirnemn]

Great series Brian, thank you

[@thomas8512]

Very good video. So much knowledge!

[@davidhuber6251]

This will make me happy when I'm to old to drive safely. I hope you can rent by the week / month so you can keep all your stuff in it on a long road trip.

[@pwells2389]

Nice one Brian. Many thanks for the very interesting info

[@FutureAzA]

Glad you enjoyed it.

[@benschroeder222]

another great informative video. love your enthusiasm for the new tesla product! cant wait for more videos

[@sergelysak]

Brian, you are a legend. Thank you.

[@FutureAzA]

Any time!

[@boballen9095]

The thing about camera -> screen vs. windows: The annoying repetitions of the message “Full self-driving may be degraded” is a result of cameras not being designed with consideration of keeping them clean or fully functional because rain or snow (that annoying stuff that happens and is SO inconvenient).

[@rr6013]

Thx for datapoints… backgrounder insights and technology facts

[@jonmichaelgalindo]

Such detail! Much wowe!

[@Philipp-pc8di]

The ability to open a car door from the inside with a mechanical switch is a critical safety feature. Being able to escape in case of an acident, or kidnapping/violence situation is important.

[@DanV18821]

Great video again!

[@MindZooWarehouse]

Love your passion, good job.

[@Inspace_noone_can_hear_u_honk.]

Thanks for the informative video.

[@budgetaudiophilelife-long5461]

THANKS BRIAN,🤗 😅AND SAVING YOURSELF THE WORK OF “ CRUNCHING THE NUMBERS “ 😊💚💚💚

[@devo237]

Thanks Brian! we appreciate your work.

[@FutureAzA]

I appreciate that!

[@NickYoung_Original]

Interesting details. Thanks.

[@philiphenderson9178]

Thanks for the timely updates.

[@Matzes]

Are you doing one of these on every charging stop driving home? 😅

[@michaelgardner7302]

If he is, it certainly is an efficient use of his time!! Smart!

[@riznliz]

great job 😀

[@mstaples07]

Great stuff. We appreciate you doing the hard work so we don’t have to 😅

[@psdaengr911]

A key difference between designing a cab for corporate use and designing a passenger car for sale is the Total Cost of Ownership becomes a direct factor for the maker. Tires' useful lifetime are related to their tread area which determines their contribution to TCO. Cost of materials and mass of wheels is more proportionate to load capacity than circumference.

[@jonstoltzfus4065]

Great vid, Brian!

[@FutureAzA]

Thanks!

[@richardmorin4518]

Great video. Thank you for doing this. I love getting the information you provided

[@lorencarmichael6067]

Great info

[@TrippingBlood]

Thanks Brian! Looking forward to the AMA!

[@FutureAzA]

Me too.

[@FamilyFirstJ]

Well done

[@mattesla]

Thanks again Brian, seems like the cybercab is going to be a beast 💪💯😎💯💯

[@FutureAzA]

It's gonna be crazy!

[@riceman78]

I wonder how they will handle suspension and ride comfort elements given big wheels with thin tyres typically means poor ride comfort.

[@FutureAzA]

Model 3 handles it well.

[@rogercrier9115]

It is surprising how similar The Gen 1 Honda insight is in size and shape to the Cybercab! Not bad for over 20 years ago

[@eugeniustheodidactus8890]

👍 Good stuff! But in general, smaller diameter wheels are more efficient than larger ones. My Deo Metro had 13" dia wheels and got 60mpg.

[@clnelson321]

Larger circumference means fewer rotations, which mean longer tire life. NVH is also greatly reduced.

[@Joe-420-69]

passenger comfort is important, bigger tyres or tires as you may say, will help take out some bumps. Were you referring to rim size or tyre as i got a bit confused as you mentioned both.

[@allenmonroe4512]

Nice scoops! No one deserves it more

[@Thesoulxx1]

Hey brotha 👍🤓🔥

[@caseydbani1419]

Thanks for all the info, nowhere else to be found!

[@JamieReneeVonTeez]

Efficiency makes me happy as Santa algorithm!!!

[@robzienert7492]

One additional constraint on side wall height is reality, which comes in several forms. Two of which are: susceptibility to pothole damage and ride quality. Of those, potholes being a wheel and tire killer. Could be a problem as they move to places with lousy roads.

[@DarylOster]

Most places in the US have bad roads. The reason is that almost half of the Highway Trust Fund has been diverted to pay for trains that almost no one uses.

[@jonevansauthor]

@@DarylOster if only there were some kind of humanoid robot that can easily perform manual labour. Or the US could just fix it's potholes, and reinstall the trains it erroneously ripped out and shunt more freight to trains because mass transit is how you get across countries, not taxis. You want to get on a train from LA to New York, be able to walk around, pay less money, not have to worry about airport security stress, be able to have proper meals sat down at a table and be able to sleep in a bed at a sensible price. Ditto everywhere else. Then arrive somewhere and get a taxi for the last portion of your trip. The US can easily afford national healthcare, bullet trains for long distance, regional but modern speed trains for other cities, and to not have potholes. Tesla can even tell you where the potholes are because they change suspension settings on roads with bad surfaces.

[@DarylOster]

The US didn't "erroneously rip out rails". Cars and aircraft displaced passenger trains due to vastly improved transportation value (much better benefit/cost ratio). Unprofitable railroads went bankrupt and/or were abandoned. Later the defunct companies were purchased at auction- usually for a little less than the scrap value of the rolling stock and track steel.

[@rzee4331]

Front-wheel drive makes sense now for 18" wheels in front. 21" rear wheel would absolutely hurt efficiency in city driving if it was rear wheel drive because of rotational inertia -- the spinning figure skater (big wheels = arms out; small wheels = arms in). If they ever had to go to rear-wheel drive (for winter traction) they would make rear wheels 18"--my guess.

[@shredder0911]

Will Tesla make a user friendly product to monitor 16 or so units concurrently, or will this be farmed out through software interface agreements? It would be nice to sit back and monitor location and internal cam for several cabs, without having to go through 3rd party.

[@giansolomon]

Any insight into how these smaller 2 door vehicles perform in safety tests?

[@nerdy67]

Hi Brian, I looked up the NHTSA regulation on Power-Operated Windows and there are 2 easy ways around needing an actuator. 1) is the window detects an object in the way and automatically reverses, if so no rules on the button. 2) or no window detection but window switch is designed pull to close so kids can't accidentally close it on themselves by leaning against or on them. The first option is likely expensive but why cant Tesla do the second option digitally like swipe up and hold to close and opening can stay simple?

[@georgepelton5645]

I'm surprised there was no mention of the narrower rear track. This allows a tapered body shape for a lower Cd. See GM EV-1 and original 2-seat Honda Insight for examples. Combined with the lower frontal area the aero drag should be exceptionally low for the Cybercab.

[@janityni9004]

So they basically admitted that having glass roof is stupid.. Why dont they get rid off it in Model 3?

[@sallerc]

Thanks for the video, interesting stuff. I think your logo need some more work tho (when shown big at 0:24 it looks like a bad magic wand job at the top on the black and white parts)

[@mygicshow]

Wow!

[@RossBurrell-w8g]

I think I get the efficiency vs range 🤔 thing. I only lose a bit of range when on long journeys above 80kms or 50mls in the old money

[@dstylez1171]

I miss the Honda Crx and this reminds of a futuristic version....pssst...honda you were on to something with...CRz

[@JephStahl]

sounds like Tesla is sand bagging the cost of this car... Sounds like it is going to be a LOT cheaper to produce.

[@jamespaul2587]

Agreed, and efficiency will likely be much higher than expected, especially at lower speeds that this will primarily drive at.

[@Barskor1]

Other than the tire sizes and outer cover the structure of the wheel is IMO simpler and lighter being a flat triangle welded to or formed to/with the rim IMO that cuts out a lot of weight and cost.

[@ResiliencyForLifeToronto]

80! Wow Wow Wow !!

[@gregorstoutbelly5598]

The algorithm on KZbin seems to be crushing everyone. Too bad we won't ever have a "KZbin files" scenario.

[@Tomer-y9f]

What’s the length and width ?

[@MarkSpohr]

Incredible efficiency. Most car companies wouldn't let their engineers think so far out of the box.

[@rhiantaylor3446]

I am looking forward to see what motor they use - I hear that there will be no rare earth metals so I am thinking they may use a (small) DC excited rotor.

[@GBC-wi5hs]

BRIAN! great question for your followers! How many startups are going to buy a fleet of tesla's to use as taxis once we get the final version of FSD?

[@badbeetle2942]

Citroen cardboard concept city car lowers Air conditioning needs by having a straight window. Even if if seems counterintuitive for aerodynamics. AC at small city speeds eat way more than the aerodynamic loss. And it has 5 seats , views and brakes you can use.

[@tomkarns1690]

Brian, is the cab using the 24volt system?

[@FutureAzA]

The engineers said "Tesla is all in on 48v". That's not exactly a yes to 48v, but it's awfully close.

[@pdcweb]

Great info as always Brian - Good thoughts, Tesla already did the math. you know ti, we know it, and speaking of efficiency; I wonder if when future Brian jumps in at the end, would it be more efficient to just let future Brian end the video and save some editing steps? That's my mandatory comment for today. cheers!

[@heli.thatSTEVE]

Is home Vancouver Brian?

[@FutureAzA]

Longview.

[@dallasgombash5381]

Smaller profile tires also pop faster and don't last as long...

[@JamenLang]

I'm going to need snow tires, tesla posted on x about and having the right tires for the weather, can I put snow tires on this without losing efficiency? Will Tesla design around snow tires and produce a slightly "beefier" model and if so - when?

[@ChristianKleineidam]

Why is the back trunk so long? Wouldn't they safe weight if they make the trunk shorter?

[@jamespaul2587]

Weight savings would be nominal, and the long hatch provides more cargo space.

[@FutureAzA]

Cargo space is part of it, but the length also improves the aero profile.

[@ChristianKleineidam]

@@FutureAzA wasn't a point that the aero profile is not that important at inner-city speeds? Most taxi rides need very little cargo space.

[@kuldeuec]

How soon can wireless charging be scaled by Tesla in supercharger locations?

[@restonthewind]

I've read that larger wheels are less efficient all else being equal, and Google's all-knowing AI agrees. Presumably, there's a sweet spot between tiny wheels and giant wheels, but apparently, it's on the smaller side. I believe that Tesla engineers optimized everything as a package, but I'm not so sure that larger wheels are generally more efficient. Fewer parts may be more efficient and less costly to assemble, but I'm not so sure about maintenance. If a window switch fails, I can't roll my window down until it's fixed. If this touch screen fails, the car's a brick until it's fixed. I can't even drive to a shop for service. My Bolt has a touch screen, and I use it a lot for navigation and entertainment, but the car is driveable without it. Maintenance may be less of an issue for a cab though. The Cybercab is a fleet vehicle. Few individuals will own one.

[@chamagical]

You can't drive a car without a steering wheel anyway. If the car goes into brick-mode, there is already another cybercab on it's way to you, you just switch cars. Fleet maintenance will take care of the broken one.

[@restonthewind]

@@chamagical Sure. I believe that robotaxis are coming and will be transformative, but I don't expect individuals to own many of them.

[@CombatSport777]

The electric motor is optimized for efficiency rather than performance. This deletes weight too. Lower weight leads to smaller batteries which will lead to shorter charge times.

[@michaellatta]

I wonder what the ride quality will be on those tires at 70mph on freeways.