"It seems like a compelling concept, but at the same time, I wonder whether designers have some obligation to begin thinking about ways to make our relationships with cars create less of a carbon burden on the environment. Converting "hangout space" into a moving, gas-drinking hulk hardly seems like a heads-up move when the price of oil is still above $2. I wonder what the entries might look like if GM asked "How can we continue to make money with cars (or at least start doing it) even if these cars will be allowed only 5 gallons of gas per week. Or 2. Whatever. I think the responses could be just as compelling as this, and infinitely more helpful."