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Cybertruck Launch

tesla.com

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Re: Cybertruck Launch

#481

Post by rpmisms »

dylan604 wrote: post #431
rpmisms wrote: post #421

Earlier quoted context omitted.

Because I can brake fast enough if they do change lanes. I tend to pass, but if we're going around the same speed it doesn't bother me.

The braking as an out because a bike can brake faster than the car always seemed odd to me because whatever car is behind you will also not be able to brake as fast.

You also have much more room as a bike. If I'm passing someone going uphill, and I don't have enough power to finish the pass on the hill, I have another 8 feet of lateral buffer versus a car before they would come dangerously close to me.

I'm not saying you should hang out next to cars all the time, but it's better than in a car, where you might have 3 feet of buffer.

Re: Cybertruck Launch

#482

Post by rpmisms »

baseballdork wrote: post #433
dylan604 wrote: post #431

Earlier quoted context omitted.

The braking as an out because a bike can brake faster than the car always seemed odd to me because whatever car is behind you will also not be able to brake as fast.

A bike, generally, can't brake faster than a car, no?

Depends on the bike, but usually a little less stopping power at lower speeds. Above 45mph or so, it's a wash. Bigger bikes also stop slower.

Re: Cybertruck Launch

#483

Post by [deleted] »

DennisP wrote: post #374
KaiserPro wrote: post #40

Earlier quoted context omitted.

or that flat surfaces aren't very strong, require more material to be rigid and generally have bad aerodynamics.

According to this sculptor/mechanical engineer who saw one recently, the Cybertruck actually has subtle curves. He posted photos. https://twitter.com/DavidKasmanArt/status/172922332301007291...

[deleted]

Re: Cybertruck Launch

#484

Post by rpmisms »

dylan604 wrote: post #477
baseballdork wrote: post #433

Earlier quoted context omitted.

A bike, generally, can't brake faster than a car, no?

It is the seemingly prevailing train of thought even if it isn't exactly accurate. But why should that stop it from being believed?

ABS on bikes has largely erased the difference.

Re: Cybertruck Launch

#486

Post by rpmisms »

DiggyJohnson wrote: post #457
rpmisms wrote: post #330

Earlier quoted context omitted.

I'll sit in a blind spot on a motorcycle happily, if there's no other traffic. If there is, I pull forward next to the window instead.

Not to over analyze, but no matter if I'm on a bike or car I've always thought you shouldn't drive alongside or in the blindspot of another vehicle if you can avoid it (by a minute change in speed).

I'd rather be next to a car than behind a car, and ahead is always best. The issue arises when you don't speed (which I don't do).

Re: Cybertruck Launch

#487

Post by Kirby64 »

iancmceachern wrote: post #470
Kirby64 wrote: post #465

Earlier quoted context omitted.

Improving efficiency of the least efficient cars is actually better at making a meaningful difference. Replacing a 20mpg average car with an EV that gets 80mpge makes a proportionally bigger difference than replacing a 35mpg car with one that gets 115mpge. The least efficient vehicles have the biggest impact on the environment.

But I'm aggregate that gets lost in the noise due to the relative volumes. Small 2 cycle engines like mopeds are the biggest contributor. Then small cars, these luxury cars are a small percent of global emissions. Also, those people don't have to drive big luxury cars, they can buy these smaller cars.

There's room in the market for both of these types of vehicles. Asking people who typically buy big luxury cars to 'just buy a smaller car' would be nice in theory, but isn't going to happen in practice. There are many reasons, valid or potentially invalid, to own a larger car or a truck, and often you're not going to change people's minds on that.

Re: Cybertruck Launch

#488

Post by gamblor956 »

toomuchtodo wrote: post #320
goalonetwo wrote: post #314

Earlier quoted context omitted.

Well, we should maybe reflect on the intense EV greenwashing pushed by Tesla and society in general. Congratulating people that buy a Tesla for helping to save the world from climate change makes absolutely no sense. Congratulate people that decide to buy small minimalist cars or give up cars and take public transportation

Tesla's ability to spin up utility scale battery manufacturing is what is contributing towards the phaseout of fossil electrical generation. That capability is built off the back of its vertical integration and vehicle manufacturing leading to cell production learning rate. It is incredibly simple for someone to assume that giving up cars solves the problem. 90M light vehicles are sold globally annually. How many hav…

It's not like Panasonic actually makes Tesla's batteries or anything...

Oh wait. They do.

Panasonic makes Tesla's batteries. So all of Tesla's battery "manufacturing" progress is really...Panasonic's battery manufacturing progress.

Re: Cybertruck Launch

#489

Post by mkehrt »

jessriedel wrote: post #426
rob74 wrote: post #33

Earlier quoted context omitted.

The shoe-shaped things are that way because of crumple areas and pedestrian safety requirements (if the car hits a pedestrian, the bonnet is supposed to deform in order to minimize injuries). Contrast that to the Cybertruck, which... > ...has received criticism from automotive safety groups, including the Australasian New Car Assessment Program and the Euro NCAP, for not conforming to standards for pedestrian and cyc…

The ever-stricter fuel efficiency requirements also impose strong constraints. If the rules were sensible, we would have a taxes on carbon and dangerous features at amounts that reflected their actual negative impact, and the consumer could choose how much they were willing to pay for style. Instead we have a march toward uniform blandness and 99% of consumers don't know why because they never interact with the regul…

How is that sensible? That allows the manufacturers to get around safety regulations by making the car cost more? That's bananas.

Re: Cybertruck Launch

#490

Post by ecshafer »

nojvek wrote: post #479

1kg of petrol/gasoline is ~48MJ. 1kg of Lithim-ion battery is ~0.25MJ/kg. Gasoline is ~192X energy dense compared to Lithium-ion batteries. Li-on is the most popular battery due to its cost and weight. In terms of weight: Tesla model Y = ~4,500 lbs. F-150 lightning = ~6,500 lbs. Rivian R1T = ~7,000 lbs. Hummer EV = ~9,000 lbs. ¯\_(ツ)_/¯ Cybertruck = ~5,400 lbs A human roughly weighs 160lbs (~72kg). Buying electric tr…

And then burning coal to charge the batteries.... But these cars are electric!
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