Absolutely not true. I don't know what the Tesla's speedometer display is like, but my experience with digital displays in cars is the exact opposite. I am much more likely to misread a digital display - in my old car this happened all the time with the digital clock display in the dash. I've never owned a car with a digital-only speedometer, but I've never liked them in rental cars.

Digital displays are obviously better for reading a precise value, but not necessarily an accurate one. To generalize, I would say being off by a a couple percent is more likely when reading an analog display, but off by a factor of two is more likely by misreading a digital one.

You're right -- it's not impossible but it might have been difficult. I hadn't checked out the interior and so I was not sure what sort of display one looks at to see the remaining range; there is one which suggests that you can see it right under the odometer:

http://images.thecarconnection.com/lrg/2012-tesla-model-s-di...

...in which case there is not much of an excuse for that type of thing. On the other hand there is a screen which gives the same information but would be very easy to misread, especially if there were glare:

http://elonmusktesla.wordpress.com/2013/02/12/tesla-model-s-...

But yeah, it's not like I was thinking, some display with LCD/LED style digits where a 5 is just one line away from being a 9. You are very correct in that regard.

False. It's possible to misread anything at any time in any condition. It is impossible to prevent all misreading, human error will always occur.