Washington Post: If you haven’t done so already, meet the Nano, possibly the most significant new car of the decade: Small, cute and snub-nosed, it fits four people and a duffel bag, has a single windshield wiper, travels at 65 mph — and it’s all yours for the princely sum of $2,500, roughly the same price as the DVD system in your neighbor’s Lexus and about half the price of the cheapest cars on the market. Even better, at least for the philosophically minded, the Nano comes with its own moral …