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Most GPS devices will plan a route using local maps. It has been this way since the early 90s. My bike computer and running watch will plan a route without connectivity. It has only been recent things like phones and some cars that require online access for mapping. TBH, I would not want a car...

Any CFOs on the board? It could be that a subsidiary captive lender entity writing-off a debt looks very different in the financials than cutting a check to an external vendor/partner.

In a sense, it distills down to an additional $1,600 loyalty discount for returning lease customers.

Exactly. Rivian copied that a little, but their R1S is not nearly as badly sub-optimized compared to the Cyberbeast. The major metric to look for, and others have repeatedly commend on, is the 50-70 acceleration split. This is at or after the point when most electric motors start losing torque...

Yep, they clearly optimized for the sizzle.

That is another great one and an illustration of how automakers can engineer a car to excel in certain metrics with some other sacrifices. In the Cyberbeast's case, it uses a really high transmission ratio against relatively low torque. This gives it a major torque advantage at the line. And...

That is a great comparison example... The reason that the Rivian is so much faster is that it has both a lot more torque and a much higher transmission ratio. The result is what you describe: ripping fast early on and then fizzle out later. At the line, the Rivian has a 62% torque advantage...

Yeah, the point of the tire sidebar is to illustrate that tire traction is probably not the limitation. But, I don't think we have enough data to make a judgement on whether they actually are limiting launch power, the acceleration data you posted above seems to follow a predicted pattern of...

This is kind of both a strawman and a non sequitur. We are talking about AWD cars here, so the comments about RWD are irrelevant. And we are not talking exact match, but maximum braking very much informs the limits of acceleration with regard to traction. The tire does not care if it is going...

Maths cannot figure out the even increments below 70 MPH. The data aren’t there. (I already did that from 90 up.)

Can your app do that? I will drop it in the chart. I couldn’t figure it out from the initial data points.

I figured it out. Your app is showing the incorrect trap speed at 60'. It should be around 44 MPH. This is the corrected table ignoring the bad trap speed. The app has a defect. Bad data, not bad math. The math always maths.

No. Math and physics are quite simple. In that table you posted above, the 60’ time and the 0-30 times are incompatible. The 60’ split is at 21 MPH, right? They both cannot be true. Unless I am misreading something, and feel free to clarify what is presented, one of those two is wrong. The fact...

It’s not a question of soft launch. Those two 60’ data points are wrong. They do not match other surrounding data points. The split times shown at the bottom do not match the acceleration graph at the top.

That is not what I expected to see at all. It looks like the first chart is saying it reached 60' at 21.84 MPH. Doing the math two different ways, that is 0.53 g, much lower than what is showing on the acceleration line in the chart above. I thought that the 1.87 second split actually included...

Here are a couple fun little charts interpolated from your data and interpreted from the Gravity motor and transmission specs. The first chart is the acceleration rate as a function of speed. The 0-10 MPH segment is off, but that is most likely because it has rollout removed, and that inflates...

Those are great... which model is that Dream Edition, Grand Touring, or Touring. A while ago I made a little table comparing all the cars I have been shopping. The interesting thing about the Gravitys is their high motor RPM and low gear ration which allows both high top speed and high...

Correct, it only rules out tire traction limitations as an acceleration constraint. They could be capping max torque or delaying arrival of max torque, which would limit acceleration. For most BEVs, the acceleration is very linear from 0 MPH until around 45-50 MPH. Then the rate of acceleration...

Engineers do. It is not exact, but it gives you insights into a theoretical boundary. Alternatively, you could look at lateral acceleration as another proxy. C&D tested the gravity at 0.90g lateral acceleration. Again, more traction than acceleration Gs. The car simply does not have the torque...

Yeah, it is pretty easy to tell that the Gravity's acceleration limitation is not the tires. Car and Driver tested the 70-0 braking at 163 feet. That is about 1 g deceleration force - a good proxy for the straight-ahead traction limit of the tires. A 0-60 acceleration run in 3.2 seconds is...