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  1. U

    Giga Berlin

    How about: "They're there. Their worry is unnecessary."
  2. U

    Blog EV Startup Rivian Closes $2.5B Investment Round

    Fix title? $2.5M is not quite the same as $2.5 *Billion*
  3. U

    light hearted request... your car name? - and why

    Car... because car.
  4. U

    Advice Needed: Convincing Husband to Go Tesla

    Pssst.... Read the last page of the thread.
  5. U

    Percent or Miles & Why?

    It's worse than that - your assumption that the mileage is a real-time estimate is not correct. In Teslas, miles left are simply state of charge multiplied by a fixed constant which depends on the EPA range of the car you bought. At 100%, the miles left will always be the exact EPA range left...
  6. U

    Stealth Model 3 still wanted?

    Not the person you were asking this question, but I would (and I would be irritated at having to pay the same amount).
  7. U

    Trying to learn why I get Phantom Braking (video)

    I think ewoodrick has a good point, while also at the same time agreeing with you that the car can apply the brakes. Nonetheless, I think perhaps the explanation of your perception lies in the definition of "jerk" from a physics perspective. In Physics, jerk is defined as the rate of change in...
  8. U

    Will the Cybertruck Be able to tow a 5th Wheel?

    I don't think the prototype weight is a great guide for them: From the Motortrend reveal article: "Construction of the prototype is "unibody-on-frame" in the same vein as the new Land Rover Defender, but the production Cybertruck will be pure unibody"...
  9. U

    "Tesla Model 3 Produces More CO2 than a Diesel Car" - Please debunk

    Here's a decent debunk: Electric car ‘hatchet job’ debunked | Transport & Environment (Elektrek also did a debunk making similar points)
  10. U

    V10 upgrade and decreased tire psi?

    This is true, but the confusing/misleading aspect of this statement is that it is linear with *absolute* temperature (i.e., degrees Rankine or degrees Kelvin, vs. Fahrenheit or Celsius). This means that going from 10 degrees Fahrenheit to 20 degrees Fahrenheit doesn't double the tire pressure...
  11. U

    The total Tesla M3 experience. Happy or disappointed?

    How about those automatic windshield wipers? Tesla gets some things very right, but also gets some things pretty wrong.
  12. U

    V 10 lane changing

    Re: "Abort, Abort" - Is there any possibility that your cameras are dirty? Purely anecdotally, I had similar behavior on a roadtrip last year. The car would regularly lose track of the lanes mid-merge and abort back to the original lane. I eventually turned the autopilot off when it tried to...
  13. U

    Taycan Takedown

    This is an impressive number, but note that they're "cheating" to a degree. The "at its most efficient" gives it away: One of the inherent disadvantages of ICEs is that they generate in the vicinity of 75% waste heat. That heat needs to be moved away from the engine compartment somehow. Usually...
  14. U

    Taycan Takedown

    You're right in a way, but I think you're missing an important point: Maximum motive power in electric cars is generally limited by the maximum discharge current the battery can safely and reliably handle. This capacity increases approximately linearly with battery capacity (all else being...
  15. U

    Hydroplane and lifting off the accelerator

    3 years SCCA regional racing, about 5 years track days. About 2 years trackdays on motorcycle. If you feel that lifting is the right thing to do when suddenly faced with oversteer (in any car), more power to you. Edit: That experience doesn't make me an expert, but I do feel I'm knowledgeable.
  16. U

    Hydroplane and lifting off the accelerator

    Slowing down is the right behavior. OP was talking about having performance driving experience - and blaming his "muscle memory". This is the part that I think is wrong. Too much throttle induces oversteer in RWD cars, but so does decelerating too abruptly. In a situation like OP's, where the...
  17. U

    P3D Limited Regen when charging to 90%

    P3D- I can't remember not seing a small number of dots on regen on my 12 mile commute - even with temps in the mid 60s-70s. I usually charge to around 80%
  18. U

    Hydroplane and lifting off the accelerator

    Please read: Lift-off oversteer - Wikipedia. Also, if you have the means and opportunity, I recommend driving in a skid car (SKIDCAR & SKIDTRUCK Systems: Complete Driver Training Solutions) The reason most street car are tuned for varying degrees of understeer at the limit is the...
  19. U

    Hydroplane and lifting off the accelerator

    Totally agree with the first two points, but I have to comment on this one (and I know you took this from his post): Lifting in *any* car which is oversteering will make the oversteer worse, and possibly induce a spin. Lifting transfers weight to the front and makes the rear light - giving more...
  20. U

    The auto wipers are............working!

    FWIW - I live in the Bay Area, and the auto-wipers are absolutely useless, even here (we haven't had much rain recently, and probably won't until winter, so no recent experience). The base model VW e-Golf I drove before my Model 3 had auto-wipers that actually worked (but yes, they did have...
  21. U

    Autopilot through highway 17 to Santa Cruz!

    Don't. While EAP does some things a lot better than humans (staying 100% attentive all the time being one very important one), it underperforms humans in many other ways. As soon as you start feeling complacent ("secure", in your terms), you're going to stop paying the attention you need to to...
  22. U

    How will Full Self Driving deal with turning into perpendicular fast-moving traffic?

    Let's do some math: 60 mph (fast traffic) is 88 feet/sec. That means that 80m range gives the car just under 3 seconds of time before the cross-traffic reaches it. That seems pretty marginal. (60 mph is admittedly fast, but I've seen some cases where this exact scenario would have to be...
  23. U

    Cornell University Study on Cameras vs LiDAR

    Here's the bottom line for the paper: "In this paper we provide an alternative explanation with significant performance implications. We posit that the major cause for the performance gap between stereo and LiDAR is not a discrepancy in depth accuracy, but a poor choice of representation of the...
  24. U

    If Tesla Needs a little cash, add Ludicrous mode to existing Model 3 Performance

    Since we're asking for things with no consideration for the realities of battery dynamics and Physics - I would pay even more for a software upgrade that makes my P3D- 700 lbs lighter. That would help both acceleration and handling!
  25. U

    P3D-

    Totally enjoying the "sleeper" status of the car. I don't even have the Dual Motor logo installed - looks like it could be a plain-jane RWD car. Haven't thought twice about the bling "performance" package.
  26. U

    First time driving EV - what to look for

    Totally agree with the rest of your post, but just want to inject a note of caution here: No stability control system can overcome the laws of physics. A Tesla will not spin out in straight-line acceleration, but there are many ways to spin out a Tesla in other situations. Drive safely!
  27. U

    First time driving EV - what to look for

    Advice for someone driving an ICE car for the first time: - When you hit the accelerator, don't expect anything to happen immediately - it takes a little while for the air to start making its way into the engine. - Conversely, if you step on it hard, be prepared to lift off when the extra power...
  28. U

    Firmware 1.34.3 issues

    Thanks for reporting this; My voltage mysteriously dropped from 240 Volts to 120 volts - I think it was an analogous change (I believe power supply here in the US is 240V split phase, and the update switched the scheme to reporting the single-phase voltage)
  29. U

    Performance Upgrade Price Change!

    I think Knightshade's right that P3D- owners' asking for a "refund" is nonsensical to a degree - because there's no payment to be refunded. On the other hand, I think P3D- owners are entitled to want some kind of compensation. After all, a P3D- owner has paid the exact same amount as a P3D+...
  30. U

    Paid a visit to Costa Mesa Store and test drove Performance M3!

    I don't want to discourage you from upgrading (as financially unwise as that might be), but I do feel it's important to mention that from a perspective of cornering performance AWD is usually not better than RWD. A car in any configuration (AWD, FWD, RWD, no-wheel-drive) will slide when you...
  31. U

    Charging cable won't insert - frozen "tab" inside receiver?

    I think either I'm misunderstanding you, or you might have misunderstood the intent of the instructions. The way I understand it, they're recommending setting the charge limit 5-10% higher *shortly before* departure time. The idea is that the current flowing through the charging cables might...
  32. U

    Non-performance AWD acceleration

    I think you lost track of the original argument: The point was to determine how much power the car is "robbed" of at 60 mph, and Daniel's arithmetic is quite appropriate for that (0-60 tests should be done level, no wind in a straight line). FWIW, there's various corroborating information, too...
  33. U

    Selling my Model 3 for a Performance

    Here's why I wouldn't do this. First of all a disclaimer: I own a P3D-, and I think it's a great car and would buy it again in a heartbeat. In your case, however, you already have a great car, too. The RWD M3's extra efficiency and lower cost arguably give it a better price performance...
  34. U

    Anyone else getting Fobs with late number VIN?

    Me. My phone has *never* worked unless I put it into airplane mode and back out while within Bluetooth range of the car. The phone key will stay connected while I'm driving, and the walk-away lock works great. But as soon as it locks that car, the phone key disconnects and won't connect again...
  35. U

    Dodged a bullet today.

    No! Don't do that - this will almost certainly corrupt the last file that was recorded (the last minute). Instead, tap the dashcam icon at the top of the screen, and it will mark the last 10 minutes for saving. People have reported successfully using a small USB hub to get additional ports.
  36. U

    Range efficiency from tire change

    You're thinking of the P as a separate model. I think from the EPA ratings perspective all the AWD variants (including the Performance) are simply versions of the same car. So the options (considering only the power limiter settings and wheel size) are/were: 1. Power limiter, 18" wheels 2...
  37. U

    Range efficiency from tire change

    EPA rules allow manufacturers to use a particular option configuration as the test vehicle. The performance is apparently being classified as an option of the normal AWD. I base this on the fact that the most recent published EPA results (dated October 2018 - see here...
  38. U

    To Performance or not to performance... AWD? P? I can't decide!

    OP - it looks like nobody took you up on the comparison to the 228i you currently drive. I looked up the performance stats for the 2 series. First of all, all of the Model 3 variants kick the pants off your 228i from a performance perspective. It looks like the Model 3 RWD is roughly...
  39. U

    New Owner: Range, Charging, Will This Scenario Work?

    I actually think you have a very healthy margin of error in your planning. I'd say go for it and adjust based on your experience. Note that speed is the biggest factor in range - if you want more range, set your cruise lower. You'll lose a few minutes in transit time, but if it saves you from...
  40. U

    Increasing range on AWD

    When cruising at a steady speed, the power requirements from the motors are very small. Since the efficiency of motors can be quite poor at the ends of the performance curve, they optimize by concentrating the load on the most efficient motor. Tesla has tweeted on this: Tesla on Twitter (quote...
  41. U

    Original Purchase Price of Car replaced by Model 3

    Almost uncannily so! The car being replaced in my case was a VW e-Golf SE - just under $30k new (but an insane lease deal).
  42. U

    Increasing range on AWD

    So much this! The biggest factor in efficiency is speed (especially at higher speeds - the difference between 60 and 70 mph is *huge* - between 20 and 30 mph, not so much). I also think the EPA results overstate the difference between the AWD and the RWD, but there almost certainly is some...
  43. U

    MR3 same range as P3D+? Possibly more?

    Thanks, I have that file: You'll note that I referenced this site in my original post. This paper's actually making my point: Here's how the "negative" force is defined: "the driving force at the wheel Fw that propel the vehicle." And where it shows up in the context of the word "negative"...
  44. U

    MR3 same range as P3D+? Possibly more?

    Troy - thanks for the detailed response, and I stand by my previous statement: Great chart! I wasn't trying to impugn the overall methodology you used - I just wanted to note one aspect which I thought might have skewed the results as far as the 3LR vs. 3AWD/3P were concerned. I'm unable to...
  45. U

    MR3 same range as P3D+? Possibly more?

    This is a great chart, but it's worth noting that the source for the numbers (the EPA dyno tests) may introduce inaccuracies. To explain what I mean I need to go into a little detail on how the EPA test works. This is going to get fairly technical, so apologies in advance. Basically, rather...
  46. U

    Service manager statement: P3D has a different drive unit than 3D

    This post is sort of like Elon's "Funding Secured" tweet. What's confirmed is that a Tesla service manager told you that there is a specific drive unit. What's also confirmed is that Tesla employees have in the past routinely (and confidently) doled out false information. Personally, I think...
  47. U

    Bummer for those who paid for self drive.

    Sure, but imagine the uproar if 5,000 of those fatalities are from Teslas on FSD running full speed into the back of fire trucks. FSD isn't going to kill people only in ways that people can identify with. It's going to find brand new AI-instigated ways to kill people. That'll make people...
  48. U

    Mid range battery available now?

    Except it sounds like they're primarily removing cells while keeping the basic structure of the battery pack the same. The question is what percentage of the battery pack is cells - the 152lbs comes off of that.