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This Chinese electric car is almost entirely windows

Baua Electric

In this case, I’ve found what looks like a mini-minivan that took an extra spin or two around the window factory before emerging complete. V6 that my parents’ Pontiac minivan came with, this Alibaba version has a 4,000W electric motor ready to clock in for a union job driving around those snot-nosed kids every day.

Chinese 52
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ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

legal light-duty vehicles from 1984 to present. One tip is that drivers should obey the speed limit since the fuel economy of most vehicles decreases above 50 mph [80 km/h]. Vehicles were tested in dynamometer laboratories at steady speeds from 40 to 80 mph [64 to 129 km/h], with the proper road-load applied. 50 to 60 mph.