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Tesla Cybertruck Pricing and Specs

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Re: Tesla Cybertruck Pricing and Specs

#831
post #699

Earlier quoted context omitted.

Motorsports enthusiasts look at Nürburgring lap times. The Porsche 911 is at the highest level of performance on any track where you actually have to use the brakes and steering wheel. If the Cybertruck can do a good lap on the Nürburgring then its "FAST", but it probably isn't, due to weight. The 911 is not built for drag racing, it's built for a track with corners where you have to use the brakes and steering wheel…

Any Cybertruck that could make it to the Nürburgring on its own would lose to pretty much any car. It can't ever go faster than 60mph if street legal in Europe.

Motorways are 70mph or in Germany 80mph, although some sections of the autobahn are unrestricted!?

Re: Tesla Cybertruck Pricing and Specs

#832

Earlier quoted context omitted.

Sounds like a terrible idea to me, honestly. Even Boeing aircraft still have a mechanical linkage. And Cybertruck won’t be a fighter jet no matter how much Elon proclaims it so, it’s just worlds away in terms of maintenance and safety engineering compared to what happens on an aircraft. Not saying it will be common but some sucker will eventually be killed by this.

> Even Boeing aircraft still have a mechanical linkage. Airbus has been FBW for nearly 40 years now. And recent Boeings are FBW as well, the mechanical linkages are only between the yokes, something which is not relevant on a car.

I think aeroplanes are not a good point of comparison.

For one, mechanical steering is still very complicated, with many meters (miles?) of hydraulic hoses, actuators, pressure control systems etc.

Two, aerospace is healthily paranoid about QA and failure modes. I'm sure a steer-by-wirw can be extremely safe when done with that mindset. But Im not sure if that's the car industry's mindset, let alone Tesla's.

Finally, fly-by-wire offers enormous safety benefits in aeroplanes, because of what it enables. But I have no idea what steer by wire enables for a car.

Re: Tesla Cybertruck Pricing and Specs

#833

It's a brutally agressive looking machine - I assume intentionally so. That flat front pretty much guarantees padestrian/cyclist/motorcyclist fatailities in a collision. And over on Ars Technica they say "Musk implied that in a crash with another vehicle, the Cybertruck [...] will destroy the other vehicle." [1] - and presumably therefore kills its occupants too. Opinion: this is the purest physical realisation of th…

How are the crumple zones on the Cybertruck for protecting the occupants inside the Cybertruck itself?

Re: Tesla Cybertruck Pricing and Specs

#834

One of the issues it'll face in Europe is weight. One source I found for the "cyberbeast" model claims a 6843-pound curb weight. That's 3.1 metric tons. While there are discussions for special allowances for electric cars, the current limit of what you're allowed to drive with a normal driving license in the EU is 3.5 tons of gross vehicle weight rating. In other words, in order to allow most people to drive the Cybe…

When the Cybertruck was announced, it was speculated that it wouldn't be street legal at all in the EU. Obviously, that was many years before any actually rolled out of the production line and before any objective information was available.

https://www.forbes.com/sites/carltonreid/2019/12/16/tesla-cy...

Re: Tesla Cybertruck Pricing and Specs

#835

It's a brutally agressive looking machine - I assume intentionally so. That flat front pretty much guarantees padestrian/cyclist/motorcyclist fatailities in a collision. And over on Ars Technica they say "Musk implied that in a crash with another vehicle, the Cybertruck [...] will destroy the other vehicle." [1] - and presumably therefore kills its occupants too. Opinion: this is the purest physical realisation of th…

what I don't get is why the effect of a crash on other isn't taken into account in the evaluation of car safety

It is. One of the key differences between the EU and US regulations is (was?) that there is a greater evaluation of what happens to a pedestrian when hit by the car being tested.

Re: Tesla Cybertruck Pricing and Specs

#836

It's a brutally agressive looking machine - I assume intentionally so. That flat front pretty much guarantees padestrian/cyclist/motorcyclist fatailities in a collision. And over on Ars Technica they say "Musk implied that in a crash with another vehicle, the Cybertruck [...] will destroy the other vehicle." [1] - and presumably therefore kills its occupants too. Opinion: this is the purest physical realisation of th…

what I don't get is why the effect of a crash on other isn't taken into account in the evaluation of car safety

The impact to pedestrians is taken into account. The impact on other cars isn't, because I don't see how you'd do that objectively - do you just crash it against an identical model? A selection of several other cars from different categories/brands? How would you determine those? Do you just test head-on collisions, or the whole gauntlet of impacts? Wouldn't that make any test require dozens and dozens of vehicles, and ultimately tell you very little because the variety of vehicles on road is so huge that your crash results against a Honda Jazz might mean nothing in a crash against a Civic or anything else.

Re: Tesla Cybertruck Pricing and Specs

#837
post #699

Earlier quoted context omitted.

Motorsports enthusiasts look at Nürburgring lap times. The Porsche 911 is at the highest level of performance on any track where you actually have to use the brakes and steering wheel. If the Cybertruck can do a good lap on the Nürburgring then its "FAST", but it probably isn't, due to weight. The 911 is not built for drag racing, it's built for a track with corners where you have to use the brakes and steering wheel…

But tow what? The bed is too small to be useful and so far as anyone knows there isn't an all-steel CyberCaravan or CyberDinghy in the pipeline. Being able to tow big heavy stuff isn't necessarily a great idea, because big heavy stuff needs to stop as well as start. If you're used to accelerating hard and braking hard, your big heavy stuff is going to have real problems with that.

I know nothing about the CyberDuck but

> Being able to tow big heavy stuff isn't necessarily a great idea, because big heavy stuff needs to stop as well as start.

is a solved problem in the caravanning | rural | Australian world.

Hayman-Reese hitches with anti sway bars provide strong transfer of pulling force for starting, load control under braking - and heavy load trailers can be dual axle with slaved electric brakes to add to the stopping power of the lead vehicle.

eg: https://www.youtube.com/watch?v=rM2--wSb5d0

Re: Tesla Cybertruck Pricing and Specs

#838
post #835

Earlier quoted context omitted.

what I don't get is why the effect of a crash on other isn't taken into account in the evaluation of car safety

It is. One of the key differences between the EU and US regulations is (was?) that there is a greater evaluation of what happens to a pedestrian when hit by the car being tested.

I hope this car never makes it into Europe in current form.

Re: Tesla Cybertruck Pricing and Specs

#839

Earlier quoted context omitted.

Lexus is already doing steer by wire, they used it to make a vehicle with a yoke that didn't suck to operate (as much anyway): https://www.motortrend.com/reviews/2023-lexus-rz450e-steer-b...

Yikes! Even assuming it all works correctly and safely, who actually wants a steering wheel like that? What's the upside? The only possible advantage I can think of is that when you start the car up again after having reverse parked, it'll be more obvious what way the wheels are currently pointing, so you can straighten up. But that's such a trivial problem.

>>What's the upside?

A much easier to manouver car, because you can get true variable speed ratio steering.

It's explained really well here:

https://www.youtube.com/watch?v=agMrewRJTow

Tbh I still think it's a bit of a silly idea. But it's not completely without its merits(the one done by Tesla was though - that was completely entirely pointless).

Re: Tesla Cybertruck Pricing and Specs

#840

It's a brutally agressive looking machine - I assume intentionally so. That flat front pretty much guarantees padestrian/cyclist/motorcyclist fatailities in a collision. And over on Ars Technica they say "Musk implied that in a crash with another vehicle, the Cybertruck [...] will destroy the other vehicle." [1] - and presumably therefore kills its occupants too. Opinion: this is the purest physical realisation of th…

We also need more legislation holding automakers and drivers liable for the impact of their designs on other road users. I'm not up to speed on product liability, but this type of statement from Musk seems likely to invite lawsuits from anyone injured by a Cybertruck.

Hopefully the car has a good pedestrian avoidance system. Otherwise, it seems to have a large blind spot for the driver. The nearly flat front also looks dangerous as well.

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