Not only that, 300 miles seems EXTREMELY optimistic for the Tesla. As I recall, even with people attempting to stretch the range, 250 miles was pushing it (which I'm sure will also be the case with the Tesla sedan). With three passengers, stressful driving, A/C on to compensate for all the stinky, hot breath... Yeah, I don't think 250 miles is reasonable for a trip to grandma's house.
The biggest hurdle for EVs right now is the batteries. The energy density just isn't there yet. Maybe in ten years, but right now, most affordable EVs are going to be relegated to urban/suburban driving.
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