Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds • Hacker News Board

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#171

Post by bravo22 » Fri, Jul 17, 2015, 9:15 PM UTC

cloudwalking wrote: post #162

bravo22 wrote: post #150

Earlier quoted context omitted.

The carbon footprint of producing the battery, even not considering the chemicals, is very large. So much so that you'd have to drive it on many years from a full-renewable source for you to break even with a regular car[1]. Tesla, sadly, maximizes the battery in their cars. My read is that their main goal is selling batteries and everything from opening their "patents" (i.e. their custom connectors/battery pack) to…

What about the carbon footprint of producing gasoline? You're missing half of the equation.

The linked report compares BEVs with ICE and Hybrid. Hybrid beats both because of the smaller battery.

BEVs have a very large upfront footprint due to the battery that needs to be paid off overtime by driving from a renewable source. However in US only 14% of energy comes from renewable sources, so it'll be a very long pay off.

Hybrids are the best way to go until we make significant strides in batteries (20-30 years off?). You rely on your charged battery for most of your trips, and the highly optimized gas engine kicks in when you need the extra range/juice.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#172

Post by eatmyshorts » Fri, Jul 17, 2015, 9:17 PM UTC

bravo22 wrote: post #136

chambo622 wrote: post #94

Earlier quoted context omitted.

Try ~55k this year

Maybe that is sold? Per this [1] article from May their delivery per quarter is about 10K units, so about 40K/yr. I'll update my reply. http://www.forbes.com/sites/greatspeculations/2015/05/12/tes...

According to Tesla's own statements, they are planning to deliver 55k this year, and their Q2 deliveries of 11,507 puts them on track (by their own estimates). I would assume some of those deliveries will be for the Model X, which is supposed to start shipping in Q3. Source: http://www.businessinsider.com/tesla-sets-a-new-record-for-c...

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#173

Post by Udik » Fri, Jul 17, 2015, 9:17 PM UTC

taejo wrote: post #90

skrebbel wrote: post #70

Earlier quoted context omitted.

My point is that the vast, vast, vast amount of products out there don't have auto-update. This includes my morning cereal, my fancy designer dustbin, my bicycle, my microwave, and my 2-year old son's favourite teddybeardogthing. To only call something a product when it has auto-update is such ridiculous HN navel gazing that it's just funny. EDIT: removed useless rant for fear of losing even more internet points!

Your morning cereal isn't auto-updated in the box, obviously, but the recipe is presumably tweaked quasi-continuously without calling it Corn Flakes 2.1 or something like that.

Not tweaked in the sense of improved, though. I guess that mostly it's changing the proportions and varieties of the contents depending on the price of the different ingredients and their availability. I was kind of shocked when I first learned (in a jam factory) that they do it all the time, while you're in the illusion of buying the same product, because, well, it displays the same label and brand.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#174

Post by jdmichal » Fri, Jul 17, 2015, 9:19 PM UTC

j-b wrote: post #111

coldpie wrote: post #105

Earlier quoted context omitted.

I will never buy a vehicle with both an infotainment system and a steering wheel. Subaru lost a sale of a brand new car when the dealer sat down, turned the key, and the radio showed.... a loading bar. Fuck that. I deal with shitty software enough everywhere else in my life. I'm not going to put up with that in a 4000lb piece of metal going 70 MPH.

So, did you end up buying a different vehicle? If so, which one?

He should have just asked to see a model without the (assumed, but very likely) upgraded system. Cheaper, and excludes the terrible bits that will be outdated in 2-3 years anyway. My Audi has just the basic system (radio, satellite, aux-in, and Bluetooth) and it has no discernible boot time. Excludes the navigation, but my phone does that perfectly fine, and I get free map updates for it every couple months. (Windows Phone has offline mapping capabilities for a few gigabytes worth of storage space.)

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#175

Post by myth_buster » Fri, Jul 17, 2015, 9:21 PM UTC

curiousjorge wrote: post #77

this alone will be a good enough excuse to get this car if you could afford it. Asides Nissan GTR, supercars running in 300,000 USD will do roughly 3.0~3.1. hypercars like pagani, p1, porsche, laferrari achieve sub 3.0 I'm extremely impressed. Even more because this was just another regular software update.

It's not a software upgrade

  One catch: unlike most Tesla Model S tuning enhancements, this one isn’t 
  a software update — and it’s not free. Why? Because Tesla had to make new, 
  physical hardware to make this possible. Specifically, they had to make a 
  fuse that didn’t melt when you pulled ridiculously high amperages over it.

  The fuse upgrade will be a $10k option for new buyers, and cost $5k (before 
  installation) for existing P85D owners.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#176

Post by rybosome » Fri, Jul 17, 2015, 9:22 PM UTC

CydeWeys wrote: post #97

bravo22 wrote: post #92

Earlier quoted context omitted.

The batteries in a Tesla aren't very green and sadly they are quite large. Big automakers think in volumes of millions of cars, Tesla delivers about 25K (EDIT: looks like 40K projected for this year[1]) cars a year. http://www.forbes.com/sites/greatspeculations/2015/05/12/tes...

Isn't it an overstatement that the batteries aren't green? Yes, there are environmental impacts from the production, but still a lot less than the environmental impacts of all the oil that would otherwise be produced and burnt to fuel the car over its lifetime, no?

That's my understanding, but it's important to keep this in mind when touting the merits of battery tech. Of course, the battery production and charging process can become drastically more green (and will do so once the Gigafactory is operational), so even this is somewhat of a moot point.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#177

Post by oaktowner » Fri, Jul 17, 2015, 9:23 PM UTC

rdtsc wrote: post #167

nicboobees wrote: post #117

Earlier quoted context omitted.

This is an awful user experience though. Look at mobile phones. An old Nokia 3210 or something, just works. It does everything fine. It works as a phone. It was designed from start to finish, and built. Compare that with Android. Every update they seem to break or remove some functionality. Endless software updates, restarting, etc. It was shipped with bugs, it'll always have bugs. I'm not convinced this is an improv…

Aslo battery life. I used to charge my phone once a week, tops. I could drop it, throw, it fit in my hand my pocket find. Now I have to charge it every day. My android is more of a portable computer that also knows how to make calls via the cell phone network.

If you turn off data and don't use the screen, you'll get much better battery life (and have approximately the same feature set as your old phone).

Old phones didn't have apps that required constant connectivity and didn't have screens at all, essentially.

So the problem is that this is comparing yesterday's phone with today's pocket-sized computer.

Note: you can still buy a feature phone today if you'd like.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#178

Post by eatmyshorts » Fri, Jul 17, 2015, 9:23 PM UTC

ylhert wrote: post #158

burger_moon wrote: post #154

0-60 times are nice but I want to know what the 60-100 time is. That's what generally used for 1/4 mile estimates. Is there any diagrams of information easily available about the couple style used between the motors and the wheel hubs? I wonder how they're done and what the limit of them is with the amount of torque they put out. In a previous life I used to build a lot of race cars and shearing axle bolts wasn't unc…

I'd imagine pretty good. It's got such a low drag coefficient, and at those speeds liquifying the tires is not as much of a problem. I'd think that the 60-100 times might be more impressive than it's 0-60 when compared to conventional cars!

Looks like an 2012 model that is not the P85 and did not have the OTA performance update from last year could do it in about 9 seconds. For a reference, that's faster than a BMW M5. Source: https://www.youtube.com/watch?v=_03g4UHtCWo

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#179

Post by hnal943 » Fri, Jul 17, 2015, 9:24 PM UTC

rdtsc wrote: post #167

nicboobees wrote: post #117

Earlier quoted context omitted.

This is an awful user experience though. Look at mobile phones. An old Nokia 3210 or something, just works. It does everything fine. It works as a phone. It was designed from start to finish, and built. Compare that with Android. Every update they seem to break or remove some functionality. Endless software updates, restarting, etc. It was shipped with bugs, it'll always have bugs. I'm not convinced this is an improv…

Aslo battery life. I used to charge my phone once a week, tops. I could drop it, throw, it fit in my hand my pocket find. Now I have to charge it every day. My android is more of a portable computer that also knows how to make calls via the cell phone network.

I've found I need to do a factory refresh every time there is an Android OS upgrade, because my battery life goes in the tank. ADB shows processes going crazy, trying and retrying to access things that are no longer there.

Re: Tesla’s Model S Gets “Ludicrous” Mode, Will Do 0-60 in 2.8 Seconds

#180

Post by vvanders » Fri, Jul 17, 2015, 9:24 PM UTC

bravo22 wrote: post #150

rjusher wrote: post #101

Earlier quoted context omitted.

What do you mean with not very green, I do know they carry chemicals inside, but the not very green part is the manufacturing or the battery itself. But Tesla is also working in a big battery factory, and I read this plant is very green. But how is the batteries less green than cars producing contamination. (The batteries could be worst, that's is something I haven't even considered)¿?

The carbon footprint of producing the battery, even not considering the chemicals, is very large. So much so that you'd have to drive it on many years from a full-renewable source for you to break even with a regular car[1]. Tesla, sadly, maximizes the battery in their cars. My read is that their main goal is selling batteries and everything from opening their "patents" (i.e. their custom connectors/battery pack) to…

That doesn't really match up with the next page(8), it shows BEV beating traditional cars in both graph and quote:

"Our base case results suggest that a BEV uses the least amount of energy of all the vehicle types analyzed in this study, followed by a hybrid and a CV. The results of the CV lifecycle analysis show that by far the greatest source of energy intensity is the use phase, at 95% of the lifecycle energy. This is due to the amounts of energy required to extract and process the gasoline and the energy intensity of the gasoline itself."