4 ms·

Yes. The Chiron matches it in speed, but not acceleration. 1.9s vs 2.4s to 60mph. Since the roadster has a 250+ mph figure, the tires are probably going to be o

Yes. The Chiron matches it in speed, but not acceleration. 1.9s vs 2.4s to 60mph. Since the roadster has a 250+ mph figure, the tires are probably going to be one of the limiting factors. (same with the Chiron). " The Chiron can accelerate from 0–97 km/h (60 mph) in 2.4 seconds according to the manufacturer,[4] 0–200 km/h (120 mph) in 6.5 seconds and 0–300 km/h (190 mph) in 13.6 seconds. In a world-record-setting test, Chiron reached 400 km/h (250 mph) in 32.6 seconds, after which it needed 9.4 seconds to brake to standstill.[14] The Chiron's top speed is electronically limited to 420 km/h (261 mph) for safety reasons.[2] The anticipated full top speed of the Bugatti Chiron is believed to be around 463 km/h (288 mph)."

gsnedders 9y ago
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.
- sundvor 9y ago
  Most likely a lot more weight.
- sago 9y ago
  > Chiron is traction limited for most of its run This sounds very dubious, unless it has negative aerodynamic downforce. Even then, the times for each successive mph drop off too fast for it to be traction limited. Even F1 cars are not traction limited for more than a brief spell of straight-line acceleration. Aero drag dominates very quickly. Cornering or braking, on the other hand...
  - baq 9y ago
    The Veyron had little downforce when put into suicide mode, right?
  - gsnedders 9y ago
    From memory, I remember seeing something claiming that the Chrion's 0–60 and 60–0 times were identical.
    - sago 9y ago
      That's doubly fishy, since it has an airbrake. [My caveat on this, I'm not a road-car enthusiast, so I'm just deducing. But I used to work in motor racing, mostly bikes. Based on the standard of reporting I saw about stuff I did know well, I don't trust the motor press on tech claims.]
- LoSboccacc 9y ago
  Lighter tires as rolling at 400kph+ is not a requirement and a fraction of the interiors
  - gsnedders 9y ago
    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).
    - LoSboccacc 9y ago
      one is a real car however, the other a rendering. I don't expect figures to change drastically from the brochure, but still.
      - grkvlt 9y ago
        The new Roadster is definitely real, not a render. They were driving them around, at speed, and showing off the acceleration, at the announcement!
        LoSboccacc 9y ago
        Doesn’t mean much. They had to replace a lot of stuff between the presented and production model x, like the door hinges, because from prototype to reality there’s an abyss, especially for a car that’s supposed to sustain thise speeds.
- usrusr 9y ago
  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.
  - thinkloop 9y ago
    Shifting gears? Why does it have an advantage?
    - cheeze 9y ago
      Teslas don't need gears since they use electric motors. So there is literally no time spent shifting gears. See https://www.quora.com/Why-don%E2%80%99t-Tesla-cars-need-a-gear-system-Why-does-a-gear-system-make-sense-only-for-combustion-engines https://www.quora.com/Why-don%E2%80%99t-Tesla-cars-need-a-ge...
      - gsnedders 9y ago
        The original Veyron could change gears in 8ms, and will, IIRC hit 60 in 2nd. Changing gear isn't going to be a considerable part of the time here.
        PeterisP 9y ago
        Wikipedia https://en.wikipedia.org/wiki/Bugatti_Veyron https://en.wikipedia.org/wiki/Bugatti_Veyron states that the original Veyron gearbox could change gears in 150ms, so it is a considerable part of the time.
        wazoox 9y ago
        While the gear are shifting the engine RPM must go down then up; the 8ms figure certainly doesn't account for the complete sequence.
        glandium 9y ago

gsnedders 9y ago

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.

sundvor 9y ago
Most likely a lot more weight.
sago 9y ago
> Chiron is traction limited for most of its run This sounds very dubious, unless it has negative aerodynamic downforce. Even then, the times for each successive mph drop off too fast for it to be traction limited. Even F1 cars are not traction limited for more than a brief spell of straight-line acceleration. Aero drag dominates very quickly. Cornering or braking, on the other hand...
- baq 9y ago
  The Veyron had little downforce when put into suicide mode, right?
- gsnedders 9y ago
  From memory, I remember seeing something claiming that the Chrion's 0–60 and 60–0 times were identical.
  - sago 9y ago
    That's doubly fishy, since it has an airbrake. [My caveat on this, I'm not a road-car enthusiast, so I'm just deducing. But I used to work in motor racing, mostly bikes. Based on the standard of reporting I saw about stuff I did know well, I don't trust the motor press on tech claims.]
LoSboccacc 9y ago
Lighter tires as rolling at 400kph+ is not a requirement and a fraction of the interiors
- gsnedders 9y ago
  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).
  - LoSboccacc 9y ago
    one is a real car however, the other a rendering. I don't expect figures to change drastically from the brochure, but still.
    - grkvlt 9y ago
      The new Roadster is definitely real, not a render. They were driving them around, at speed, and showing off the acceleration, at the announcement!
      - LoSboccacc 9y ago
        Doesn’t mean much. They had to replace a lot of stuff between the presented and production model x, like the door hinges, because from prototype to reality there’s an abyss, especially for a car that’s supposed to sustain thise speeds.
usrusr 9y ago
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.
- thinkloop 9y ago
  Shifting gears? Why does it have an advantage?
  - cheeze 9y ago
    Teslas don't need gears since they use electric motors. So there is literally no time spent shifting gears. See https://www.quora.com/Why-don%E2%80%99t-Tesla-cars-need-a-gear-system-Why-does-a-gear-system-make-sense-only-for-combustion-engines https://www.quora.com/Why-don%E2%80%99t-Tesla-cars-need-a-ge...
    - gsnedders 9y ago
      The original Veyron could change gears in 8ms, and will, IIRC hit 60 in 2nd. Changing gear isn't going to be a considerable part of the time here.
      - PeterisP 9y ago
        Wikipedia https://en.wikipedia.org/wiki/Bugatti_Veyron https://en.wikipedia.org/wiki/Bugatti_Veyron states that the original Veyron gearbox could change gears in 150ms, so it is a considerable part of the time.
      - wazoox 9y ago
        While the gear are shifting the engine RPM must go down then up; the 8ms figure certainly doesn't account for the complete sequence.
      - glandium 9y ago