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Tesla Roadster

tesla.com

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Re: Tesla Roadster

#271

Post by Tempest1981 »

usrusr wrote: post #242
gsnedders wrote: post #93

Earlier quoted context omitted.

Chiron is traction limited for most of its run; I presume to beat the Chiron's time the Tesla Roadster has better tyres for initial grip.

Very unlikely. With power you weight beyond useful (this has basically been "solved" since the day someone built a cat around a ww2 military aircraft piston engine), acceleration is determined by aerodynamics (drag and downpressure), tires and the time spent shifting gears . It's pretty evident where Tesla has the advantage.

Tesla may have a better traction-control algorithm. Or the electric motors may make it easier to modulate power more rapidly/precisely (vs gas).

The 2nd picture on this page is interesting: https://electronics.stackexchange.com/questions/271674/tesla...

Re: Tesla Roadster

#272

Post by robotresearcher »

benjaminl wrote: post #72
alexanderstears wrote: post #43

Earlier quoted context omitted.

It's darn near the limit of what we can do with current tire technology, don't be surprised if this drops - all we need is a tire that can deal with it. You're right that it's absurd but most sports cars can do 60-0 in about the same amount of time, it's interesting to think about running that acceleration in the oppisite direction.

The Tesla Model S P100D has the exact same 0-60 and 60-0 times. So Tesla has already achieved that, but with a much heavier car.

I can't find better than 2.28 seconds documented.

http://www.motortrend.com/cars/tesla/model-s/2017/2017-tesla...

Re: Tesla Roadster

#273

Post by lwansbrough »

nepotism2018 wrote: post #269

I'm hoping they actually tested that 250mph+...I'm no expert but that car looks bit too light and short to do that speed...can't see how it will stick to the road...unlessssss...they want it to fly away :)

The battery probably has some good weight to it.

Re: Tesla Roadster

#274

Post by vanderZwan »

thinkloop wrote: post #250
usrusr wrote: post #242

Earlier quoted context omitted.

Very unlikely. With power you weight beyond useful (this has basically been "solved" since the day someone built a cat around a ww2 military aircraft piston engine), acceleration is determined by aerodynamics (drag and downpressure), tires and the time spent shifting gears . It's pretty evident where Tesla has the advantage.

Shifting gears? Why does it have an advantage?

Tangent: please don't downvote someone asking questions, people. I for one had not considered that electric motors have no gears to shift, and wondered "surely both cars are automatic? Does Tesla have a patent on a faster automatic transmission or something?" so I appreciated someone asked.

Re: Tesla Roadster

#275

Post by 0xbear »

Devthrowaway80 wrote: post #211
zippergz wrote: post #102

Earlier quoted context omitted.

I’m no Tesla defender, but how is anything “known” about a car that was first announced a couple of hours ago?

I think he's referring to the fact that Model S's are known to overheat and go into limp mode when pushed hard at the track. Not necessarily applicable to this particular vehicle.

If anything, it’s going to be even more applicable. I don’t see much in the way of air intakes. No intakes——epic fail on the track.

Re: Tesla Roadster

#279

Post by Beltiras »

I don't need to live in a house when I have a car like this do I? Think the wife will buy that argument for selling the house and buying this car?

Re: Tesla Roadster

#280

Post by Already__Taken »

smitherfield wrote: post #127
tdiggity wrote: post #81

I wonder what the handling will be like. Teslas on the track have had over heating issues, and cornering performance has been just average at best. Not every exotic car owner (Ferrari, Lambo, Mclaren) brings their car to the track, but I feel like a good % do. When you own a 200k car, you don't drive it to the grocery store because it attracts too much attention, and you worry something bad will happen to it. Edit: F…

> But, alas, 200k, I want it to be perfect forever. Even used in 5 years @ 130-150k. The good/bad thing about electric cars is that they're sort of like computers right now (they're getting twice as good every 1-2 years), so I expect they'll depreciate more along the lines of used smartphones than (the existing market in) used cars.

Something like this I bet the value evaporates just like the manufacture warranty on the battery.
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