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The elevation data is not that large. At ten meter spacing and 2 bytes per point there's less than 20GB of raw data to cover the entire surface of the US. The paved surface is a tiny fraction of that, let's assume 1%, so 200MB uncompressed. My two car GPS devices have speed limit data for most...

I (the OP) do not dispute the value of SOC. Nor do I disagree with your assessment of the Leaf's nav . In fact, I'm not sure there is a dispute at all. I and others believe that a relatively low cost improvement in the nav system would greatly benefit the non-enthusiast driver like myself. And...

There seems to be some confusion as to what I (the OP) and others are asking for. EVDRIVER and AndyH wrote that a range indicator is useless; I agree. The range depends on too many variables. What we want is to be able to enter a destination into the nav and have it report, accurately, whether...

Unfortunately, no. I played with the mapping feature of the nav for a good long while at my test drive. Much longer than I spent driving the car. So far as I could tell the does not warn you about range limits. It was my impression that the actual mapping function could easily be unchanged...

The value of a vehicle is its ability to take me from A to B. The more limited the range the less valuable the vehicle. A 100 mile range (that might be 60 in the hills of the Bay Area in summer) is not a lot to start with. If I have to lop another 20 or so off for insurance, that really cuts...

I had my test drive today in San Francisco. I spent more time playing with the nav then I did driving the car. The test drive was inside Moscone Convention Center. Not a lot of room. It is my understanding that these are pre-production cars and will be crushed. So there's no reason to believe...

I will be very disappointed if you are correct. I can well imagine myself standing in the driveway deciding whether to take the Leaf or not. Being risk-adverse I may often choose not to when in fact it would have been fine. That is 100% the result of poor information. If the Leaf will tell me...

Nissan has said that there are many things that I as a driver can do to maximize battery life: Don't live in Phoenix Don't use a Level 3 charger Don't drive with a heavy foot and more All the suggested warranty options are one size fits all. As a result A hot-rod driver in Phoenix with a...

One of the biggest concerns about the Leaf and electric cars in general is "range anxiety", the fear of running out of power. Due to the short range of EVs many drivers will frequently push the limits of the vehicle's range. Considering the wide variation in range due to driving conditions it...