Given how well a practical 400 mpg car would sell, that we don't have them tells us there is something hard about it--either it's way, way expensive, or for whatever reason (speed, comfort, style, etc.), few people would buy it. There is no conspiracy to keep MPG low.

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Todd (Bowie, MD, US, North America, Earth, Sol System, Vega region, Local Bubble, Orion arm, Milky Way Galaxy, Local Group, Virgo A Cluster, Virgo supercluster, the universe in which spock is clean shaven)

Quidquid latine dictum sit, altum sonatur.

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