Chevy Volt - 2013 model goes from 35 to 38miles electric range
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One of the interesting technical points i read in one of the articles about the Volt is that they are drawing down the battery more (and leaving a slightly lower reserve) based on the data from actual use that shows that the battery will not be harmed. I am hoping Fisker will also be able to let us use more of the battery and get more performance by relaxing some of the limits.SoCalGuy said:
I wonder if they will change the way they calculate the MPG for the EVER cars at some point. My real world experience is 150 MGP; which from what I've read here is closer to most owner's experience than the official calculation. (A first for me to get better real world MPG than advertised!)
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The real world MPG is highly dependent on your driving distance, speed, and the availability of charging opportunities. It would b difficult to come up with a single test that replicates all the ranges of these parameters. The best they can do is to come up with a sufficiently diverse test that covers the different driving regimes and then use it a relative, not absolute, measure to compare cars with each other. I don't think we will ever stop hearing the phrase "your mileage may vary."EVer1 said:
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The MPGe rating is based on how much energy is used to travel a certain distance. The EPA says that the Karma has an electric range of 32 miles using 20kwh of juice. That equates to approximately 1.6 miles per kwh. A gallon of gas contains about 33kwh of energy, so the "MPGe" is 1.6 miles per kwh times the 33 kwh in a gallon of gas = 52.8 MPGe. The only way this rating would change is if the EPA testing got more than 1.6 miles per kwh.
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