I recently returned from a family visit to the metro Detroit area and am chastened to note that the roads were chockablock with SUVs and trucks of various enormous dimensions. They seemed to outnumber economy cars 3 to 1. Gas prices may be at all-time highs, but the Motor City’s steadfast motorists will not be deterred from driving their behemoths, though there are signs the love affair is waning. I felt as if I were witnessing the penultimate, gluttonous splurge before the imminent oil crisis. These people were hell-bent on going out with an ozone-depleting bang, damn it, so move your puny Honda Civic out of the way, traitor.