Live data from Hacker News

Tesla Roadster

tesla.com

361–370 of 729 posts

Re: Tesla Roadster

#361

Earlier quoted context omitted.

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.

Why not? It's their Formula One of development. Lots of competitors are entering the area. This helps remind everyone who the best is.

Because they already have enough on their plate and are worse off for the distraction?

Re: Tesla Roadster

#363

Earlier quoted context omitted.

Lighter tires as rolling at 400kph+ is not a requirement and a fraction of the interiors

The top speed is quoted as being in excess of 400km/h? They have the same problem with speed rating of the tyres. I'm also curious as to how much it will weigh given the batteries (given the weight of other Teslas).

one is a real car however, the other a rendering. I don't expect figures to change drastically from the brochure, but still.

Re: Tesla Roadster

#365
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…

Sounds really good on paper but the production is scheduled for 2020, so it’s unfair to compare it to the cars currently on the market. No other manufacturers announce cars so far ahead so it seems at least partly like a hype for Tesla investors. Acceleration is just one part of what makes a great sports car. And how is the acceleration past 100 mph? That’s the traditional weakness of electric cars and it matters more on the track. How about its weight, brakes, turning, steering feel, grip, suspension, weight distribution (it should be quite good), downforce? Will the battery last for a full track day? Of course sound has always been a very important part of what made sports cars exhilarating to drive and Tesla can’t compete there. And the design and brand matter too. Ferrari and Lamborghini don’t make $40k cars (or even $100k cars).

Re: Tesla Roadster

#366
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…

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 Tesla is better.

Formula-E cars are doing 0-62 it in 3s [1]:

> An average Formula E car has a power of at least 250 horsepower (190 kW). The car is able to accelerate from 0–100 km/h (0–62 mph) in 3 seconds, with a maximum speed of 225 km/h (140 mph)

[0]: https://en.wikipedia.org/wiki/Formula_One_car#Acceleration

[1]: https://en.wikipedia.org/wiki/Formula_E#Car

Re: Tesla Roadster

#367
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…

Ah, but do the doors go like this ^(o_o)^ or like this \(o_o)/ not like this

Your comment made everybody in the office laugh

Re: Tesla Roadster

#368
post #286

Earlier quoted context omitted.

I await Tesla's foray into serious racing with bated breath. I'm sure Porsche and Audi are terrified. If they gave a shit about developing actual performance EVs, I'd expect them to be in Formula E, but they're not. BMW, Audi, Mercedes and Porsche are.

Perhaps they're focusing on other things? Motorsport has always been about advertising, maybe they don't see an advantage in that at this time.

Yeah, it could drive more people to want to purchase Tesla cars but since they have production bottlenecks it's not the best of times to do so.

Re: Tesla Roadster

#370
post #80

Earlier quoted context omitted.

Too bad it can’t maintain that performance for any extended period of time. Battery is known to overheat if you drive it too hard.

It uses 3 motors (2 in the back) and has a 200 kWh battery pack. The reason for such a large battery is so that they can draw more total current without overheating, theoretically twice as much as the Model S P100DL which only has two motors (1 in the back). Having more motors means you are spreading out the current/heat. The 600+ mile range is mostly a side effect of this engineering approach to performance.

Given that the Model S 85 kw battery is 1,200 lb, how on earth will this thing corner?
Post reply on HN