Posts tagged ‘Tesla Model’

More on The Poor State of Automobile Cockpit Interfaces

A while back I wrote that automobile dashboard design in modern cars sucks.  I drive many different cars as I am frequently renting cars on the road and I concluded:

If car designers are getting rid of physical buttons in favor of multilayered menu systems because it saves them a bunch of money, fine.  Bad trade-off in my mind, but there is at least a reason.   But if they are getting rid of physical buttons because they think that modern users prefer navigating multiple screens to access commonly used functionality, this is simply insane.  No one can top me for pure technophilia, but technical wizardry should not come at the expense of reduced usability.

No one listens to me but they do listen to Consumer Reports, and that magazine dinged the new Tesla Model 3's for exactly this problem:

"Another major factor that compromised the Model 3’s road-test score was its controls. This car places almost all its controls and displays on a center touch screen, with no gauges on the dash, and few buttons inside the car. This layout forces drivers to take multiple steps to accomplish simple tasks. Our testers found that everything from adjusting the mirrors to changing the direction of the airflow from the air-conditioning vents required using the touch screen."

Postscript:  This is not really the point of this post, but how is this even possible in a small car like the Model 3?

"The Tesla’s stopping distance of 152 feet from 60 mph was far worse than any contemporary car we’ve tested and about 7 feet longer than the stopping distance of a Ford F-150 full-sized pickup," reads the review based on tests on different Model 3s.

The Electric Vehicle Mileage Fraud, Updated: Tesla Model 3 Energy Costs Higher than A Prius, Despite Crazy-High eMPG Rating

Nearly 8 years ago (can it be so long?) I wrote a series of articles about what I called the electric vehicle mileage fraud at the EPA.  Rather than adopt sensible rules for giving electric vehicles an equivalent mpg rating, they used a horrible unscientific methodology that inflated the metric by a factor of three (in part by ignoring the second law of thermodynamics).  All the details are still online here.  I am not omniscient so I don't know people's true motivations but one is suspicious that the Obama administration wanted to promote electric vehicles and put their thumb on the scale of this metric (especially since the EPA in the Clinton Administration has already crafted a much better methodology).  To be fair, smart people screw this up all the time -- even Eric Schmidt screwed it up.

Take for example the Tesla model 3, which has been awarded an eye-popping eMPG of between 120 and 131.   Multiplying these figures by .365 (as described in my linked article) gets us the true comparative figure of 44 to 48.  This means that in terms of total energy consumption in the system, the Tesla is likely better than most gasoline-powered vehicles sold but less energy efficient than top hybrids (the Prius is listed as 53-58 mpg).  At the end of the day, electric cars feel cheaper to fuel in part because they are efficient, but perhaps more because there is no little dial with rotating dollar numbers on the electric cables one attaches to charge them  (also, there are still places where one can skim electricity for charging without paying).

Basically, I have been a voice in the wilderness on this, but I just saw this note on the Tesla Model 3 and its operating costs from Anton Wahlman writing at Seeking Alpha

there are attractive and spacious hatchbacks yielding at least 55 MPG for under $25,000, without taxpayer funding needed. Just to be conservative and give the opposite side of the argument the benefit of the doubt, I’ll refer to these as 50 MPG cars, even though they perform a little better. Rounding down is sufficient for this exercise, as you will see below....

To find out [the price to charge a Tesla], you can go to Tesla’s Supercharger price list, which is available online: Supercharging.

As you can see in the table above, the average is close to the $0.24 per kWh mark. So how far does that $0.24 take you?

The Tesla Model 3 is rated at 26 kWh per 100 miles according to the U.S. Department of Energy: 2018 Tesla Model 3 Long Range.

In other words, almost four miles per kWh. It’s close enough that we can round it up to four miles, just to give Tesla some margin in its favor. That squares with the general rule of thumb in the EV world: A smaller energy-efficient EV will yield around 4 miles per kWh, whereas a larger EV will yield around 3 miles per kWh.

That means that at $0.24 per kWh, the Tesla Model 3 costs $0.06 per mile to drive.

How does that compare to the gasoline cars? At 50 MPG and today’s nationwide average gasoline price of $2.65, that’s $0.05 per mile. In other words, it’s cheaper to drive the gasoline car than the Tesla Model 3.

This result that the Tesla is slightly more expensive to fuel than the top hybrids is exactly what we would expect IF the EPA used the correct methodology for its eMPG.  However, if you depended on the EPA's current eMPG ratings, this would come as an enormous shock to you.

Electric vehicles have other issues, the main one being limited range combined with long refueling times.  But there are some reasons to make the switch even if they are not more efficient.

  1. They are really fun to drive.  Quiet and incredibly zippy.
  2. From a macro perspective, they are the easiest approach to shifting fuel.  It may be easier to deploy natural gas to cars via electricity, and certainly EV's are the only way to deploy wind or solar to transportation.


Why Tesla Agreed to Pay Elon Musk So Much

Tesla agreed to give Elon Musk what is potentially the richest executive compensation package ever.  I will give my (*gasp*) cynical reason why I think they did this.  I can show you in one chart (Tesla Model 3 production, from Bloomberg):

I would argue that Elon Musk is the only one in the world who can run a company with so many spectacular failures to meet commitments and still have investors and customers coming back and begging for more.  A relatively large percentage of Teslas get delivered with manufacturing defects and their customers sing their praises (even while circulating delivery defect checklists).  Tesla keeps publishing Model 3 production hockey sticks (apparently with a straight face) and consistently miss (each quarter pushing back the forecast one quarter) and investors line up to buy more stock.  Tesla runs one of the least transparent major public companies in this country (so much so that people like Bloomberg have to spend enormous efforts just to estimate what is going on there) and no one is fazed.  Competitors like Volvo and Volkswagon and Toyota and even GM have started to push their EV technology past Tesla and actually sell more EV's than does Tesla (with the gap widening) and investors still treat Tesla like it has a 10-year unassailable lead on competition.

All because Elon Musk can stand up at a venue like SXSW, wave his hands, spin big visions, and the stock goes up $3 billion the next day.   Exxon-Mobil has a long history of meeting promises, reveals its capital spending plans in great detail, but misses on earnings by a few cents and loses $40 billion in market cap.  GE lost over half its market value when investors got uncomfortable with their lack of transparency and their failures to meet commitments.   Not so at Tesla, in large part because Elon Musk is PT Barnum reincarnated, or given the SpaceX business, he is Delos D. Harriman made real.

Disclosure:  I don't currently have any position in TSLA but over the last 2 years I have sold short when it reaches around $350 (e.g. after Elon Musk speaks) and buy to cover around $305 (e.g. when actual operational or financial data is released).  Sort of the mirror image of BTFD.