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BYD builds fastest car

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Re: BYD builds fastest car

#111
post #101
post #56

Earlier quoted context omitted.

> Porsche 919 Hybrid EVO did it in 5:19 If anyone hasn't seen this, I highly recommend it, even if you're not a car fan. https://www.youtube.com/watch?v=PQmSUHhP3ug

what is "boost"? my car does not have that

It’s the amount of boost provided by the turbocharger. Your car very well may have that.

Re: BYD builds fastest car

#112

Ever since I rode in a BYD in China I've thought it would be great to be able to get one in the USA. It just really felt complete, put together and polished in a way that I haven't seen in a "normie" U.S. car in a long time. Too bad our country uses high tariffs and regulatory barriers to protect its dinosaur companies.

> it would be great to be able to get one in the USA.

Allowing in Chinese EVs into markets where there are important domestic auto manufacturers will be very bad for those domestic manufacturers. (US, Germany, France, S.Korea, Japan, etc.) Outside of Tesla, none have EV brands competitive with the Chinese firms and if customers in those non China markets migrate to Chinese brands en masse, it would be tremendous disruption and the failure of many storied domestic brands.

It is important that the US have strong auto companies. Same is true for Germany, France, Japan, S. Korea, etc.

China should have strong car companies for their domestic market. The problem comes when they end up destroying other/outside markets.

Look at solar panels, drones, batteries, for similar comparisons.

Re: BYD builds fastest car

#114
post #112

Ever since I rode in a BYD in China I've thought it would be great to be able to get one in the USA. It just really felt complete, put together and polished in a way that I haven't seen in a "normie" U.S. car in a long time. Too bad our country uses high tariffs and regulatory barriers to protect its dinosaur companies.

> it would be great to be able to get one in the USA. Allowing in Chinese EVs into markets where there are important domestic auto manufacturers will be very bad for those domestic manufacturers. (US, Germany, France, S.Korea, Japan, etc.) Outside of Tesla, none have EV brands competitive with the Chinese firms and if customers in those non China markets migrate to Chinese brands en masse, it would be tremendous disr…

In what sense are domestic car manufacturers "important"? They're inefficient if they're being outcompeted by China.

Re: BYD builds fastest car

#115

3000 hp? Not sure if that's measured at the "crank" or the dynamo, but that's over 2MW, probably pushing 2.5MW of power draw from the batteries assuming a motor efficiency of 90% and some other losses. Apparently that's getting drawn at 1.2kV from the batteries, so "only" around 2kA of current draw. That top power draw would drain the 80kWh batteries in around 2 minutes, though I'm guessing you'd hit thermal throttli…

Motor output, so you’ll still have transmission loses beyond that (but with a fixed drivetrain, with no multi-speed gearbox, quite possibly more like 95%).

Re: BYD builds fastest car

#116
post #109

Earlier quoted context omitted.

dinosaur would be a compliment for tesla which designs/releases one new car every decade (each delayed by a decade from initial release date) :)

They've released 6 models in the 22 years since founding (not counting Semi).

BYD released that many since you wrote this comment :)

Also check the same for say a Toyota

Re: BYD builds fastest car

#117
post #112

Ever since I rode in a BYD in China I've thought it would be great to be able to get one in the USA. It just really felt complete, put together and polished in a way that I haven't seen in a "normie" U.S. car in a long time. Too bad our country uses high tariffs and regulatory barriers to protect its dinosaur companies.

> it would be great to be able to get one in the USA. Allowing in Chinese EVs into markets where there are important domestic auto manufacturers will be very bad for those domestic manufacturers. (US, Germany, France, S.Korea, Japan, etc.) Outside of Tesla, none have EV brands competitive with the Chinese firms and if customers in those non China markets migrate to Chinese brands en masse, it would be tremendous disr…

Or you know - American companies can give customers a better product, instead of hiding behind yet another “too big to fail” scenario.

America was synonymous with competition. To see protectionism championed, is to really see the end of an empire.

Re: BYD builds fastest car

#118
post #110

Earlier quoted context omitted.

dinosaur would be a compliment for tesla which designs/releases one new car every decade (each delayed by a decade from initial release date) :)

>dinosaur would be a compliment for tesla which designs/releases one new car every decade ...because they don't do model years? Most cars are like that too, except they increment the model year annually, whether or not there are substantive changes.

model years what now? :)

Re: BYD builds fastest car

#119
post #10

Funny that it packs 3000hp while the Chiron « only » needs 1600hp to achieve mostly the same speed.

I watched a video of the speed test a few days ago and it looked like the BYD car was still accelerating when the top speed was reached, such that it could have gone faster than the record they were aiming for—there was a speed curve and it wasn't plateauing. Of course there are lots of possible reasons why the car couldn't have managed a higher speed, but I wonder if it's like incredibly tall skyscrapers having secr…

Tyres are almost certainly the limiting factor here; also I forget how close to the (admittedly banked) turn it was when it hit its top speed.

Re: BYD builds fastest car

#120

It seems to me like building the fastest EV has nowhere near the complexity of building the fastest ICE car. Way too many moving parts and fine tuning required to get an engine to 440Kmh (Chiron SS) than an EV with 4 big motors.

Isn't the complexity in storing and and moving the electrons rapidly? Stringing a bunch of 18650s with a copper wire harness won't cut it. You've got to invent some novel chemistries and new materials to pull it off.

At a battery level it’s very doable — and certainly not as extreme as in most racing applications — it’s just a bunch of trade-offs.
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