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Tesla Roadster

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Re: Tesla Roadster

#431

Post by chrismcb »

thebluehawk wrote: post #83
chrismcb wrote: post #70

Earlier quoted context omitted.

When the battery can be refilled in minutes, it will be game over. Until then...

As a Tesla Model S owner, you really don't need to fill your car in minutes. It's a totally different (but not bad) mindset. Every morning my car is full, because I plug it in in my garage. So if I don't go more than 260 miles that day, it's plugged in the next night. It doesn't matter that it takes a few hours. My gas car was just sitting in the garage each night anyway doing nothing. How many hours does your car si…

Yes, for a daily driver you don't need to recharge in minutes... But if you go on a trip you do. Super chargers are great, but not everyone wants to take along break every few hours of driving.

Re: Tesla Roadster

#432

Post by chrisper »

DennisP wrote: post #417
chrisper wrote: post #71

Earlier quoted context omitted.

Also I wonder how many times you can accelerate like that... maybe only once with full charge?

The Porsche CEO has been sorta claiming that but it doesn't make sense to me. The kinetic energy of your car at a given speed is the same, regardless of how fast you accelerated to get to that speed. Do batteries waste more energy when you drain them faster? They can't waste a large portion of battery capacity, because the heat from that much energy getting wasted would blow up the car.

At a given speed, the energy is the same. But to get the car going it takes significant energy.

Re: Tesla Roadster

#433

Post by bigboy678 »

While the specs of this car are no doubt impressive i wouldnt say no one can compete with them. Porsche is/has been working on a high end electric car for quite a bit and they have specifically said they would challenge Tesla with it. Porsche also is someone who knows how to build high end cars and with their racing heritage i wouldnt be suprised if in 2020 they take some wind out of Teslas sail

Re: Tesla Roadster

#434

Post by andrepd »

ardit33 wrote: post #17

The Tesla roadster specs are insane! No exotic carmaker will be able to match it (taking price as a consideration). (no Ferrari, or Lambo, can get that close. This is Formula 1 acceleration speeds). Plus 620 miles of range, and it is a 4 seater. Expensive as hell, but this is exotic car territory. Base Specs Acceleration 0-60 mph1.9 sec Acceleration 0-100 mph4.2 sec Acceleration 1/4 mile8.8 sec Top SpeedOver 250 mph…

Acceleration is not all that matters. I'm going to hold until a hands-on driving test before I make such claims as "best sports car on the market" and "no Ferrari can compete".

Re: Tesla Roadster

#435

Post by bigboy678 »

While this cars specs are no doubt impressive I wouldnt say no one will be able to challenge them. Porsche has been working on a high end electric car for a while and they specifically said they would challenge Tesla. Porsche can build some nice high end cars, and with their racing/electric technology i wouldnt be surprised if in 2020 they take some wind out of teslas sail

Re: Tesla Roadster

#436

Post by sunstone »

adamlett wrote: post #254
digitalzombie wrote: post #227

Earlier quoted context omitted.

> Does this mean that Tesla is pivoting from their attempt to produce a medium-priced car in quantity and going back to hand-building high-end cars? It's a halo car... Car companies build halo car to get consumers attention to their brand and to sell other models. Nissan didn't have to build the GT-R R35 but it did because it's a halo car. Another example is Toyota LFA.

But why does Tesla need a halo car? They already have the consumers’ attention. Lots of people would buy Teslas today but can’t because Tesla is unable to mass produce the Model 3.

Musk did mention in his presentation that the motivation for making this car was as "a complete smack down to gas powered cars" and it may be no more than that, though the halo effect doesn't hurt and neither does the R&D effort.

Re: Tesla Roadster

#437

Post by agumonkey »

So basically Musk unveils future products of lesser demand but probably higher profit so he can raise Tesla stock value a bit and also grab some preorder cash flow and help Model 3 while it's stuttering ?

Re: Tesla Roadster

#438

Post by crispyambulance »

mschaef wrote: post #418

It'll be interesting to see if they can keep the battery power output up for a sustained length of time. Acceleration numbers are all well and good, but racetrack performance is about sustained high-load operation, and Tesla has had some trouble there: http://www.thedrive.com/news/5207/this-video-reminds-us-that... https://insideevs.com/expected-tesla-model-s-fails-lap-nurbu... Then again, how many people actually ca…

    > Then again, how many people actually care? I don't think they'll have trouble finding buyers.
You're right, the actual performance doesn't matter for the buyers of such cars. All supercars are playthings for folks with money burning holes in their pockets. Pure luxury, thrill and ostentation. The vast majority of these cars will be slogging it out in mind-numbing stop-and-go traffic just like the rest of us. Sure, there may be an occasional opportunity to make a dramatic passing maneuver on a pristine highway against a driver that doesn't think he's racing-- big whoop.

Re: Tesla Roadster

#439

Post by andrepd »

jfindley wrote: post #397
icc97 wrote: post #366

Earlier quoted context omitted.

From Wikipedia's F1 page [0]: > The 2016 F1 cars have a power-to-weight ratio of 1,400 hp/t (1.05 kW/kg). Theoretically this would allow the car to reach 100 km/h (62 mph) in less than 1 second. However the massive power cannot be converted to motion at low speeds due to traction loss and the usual figure is 2.5 seconds to reach 100 km/h (62 mph) Even adjusting for 60 mph = 2.4s, I don't see how the traction of the T…

I agree, I think this is another case of "well it works on our computer" pre-release specs that will turn out not to get close to real-world performance. The 0-100mph is very suspicious but I think the 0-60 time quoted is simply impossible for a road car, even making allowances for a few years of tech advancements. F1 tires are nothing like road tires. They're not even vaguely comparable - at normal operating tempera…

>Traction control: F1 cars are driven by some of the best drivers on the planet. I think it's straining credulity to believe that an electronic traction control system is going to outperform them to such a huge degree.

I'm with you for the rest of the post, but this is not straining credulity. Look at the F1 season where traction control/launch control was not yet banned. You can see how the cars with that technology gained a massive advantage. Look no further than some starts featuring Schumacher vs Senna. The former wasn't a better driver, but Senna couldn't do anything but watch him pull away on the starts. And that's 1993 technology.

Re: Tesla Roadster

#440

Post by le-mark »

agumonkey wrote: post #437

So basically Musk unveils future products of lesser demand but probably higher profit so he can raise Tesla stock value a bit and also grab some preorder cash flow and help Model 3 while it's stuttering ?

Seems obvious now, I wonder why he didn't do this sooner. The first Tesla was a high end sports car after all.
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