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Muscle-car icons immortalized in new postal-stamp set

Perhaps sensing that it's at risk of going the way of the carbureted big-block and leaded gasoline, the United States Postal Service is apparently willing to try anything to boost its bottom line. Though we're sure its recently announced line of postal worker-inspired apparel will be a runaway (and runway) success, we're glad to see the USPS reaching out to the automotive-enthusiast community with a new set of limited-edition stamps that commemorate the American muscle car. We told you about the stamps earlier this year, but we can now confirm the lineup.

GM envisions future city car with EN-V concepts

The city car of the future will seat two people, run on electric power and communicate with other vehicles to reach a destination faster while automatically avoiding traffic tie-ups and crashes. General Motors, working with electric-scooter maker Segway, has developed three concepts tailored toward that vision of future transportation. The Electric Networked Vehicle, or EN-V, concepts go on display May 1 at the World Expo in Shanghai.

Diesel-powered Audi A3 Sportback TDI coming to America in 2015

The Audi A3 family has another America-bound variant: the automaker announced at the New York auto show that a diesel-powered Audi A3 Sportback TDI will go on sale here in 2015. Previously, we were told that the plug-in hybrid version of the vehicle -- the so-called Audi A3 Sportback e-tron -- would be the only one to make it to American markets. According Audi, it was enthusiast demand that spurred the change.