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Fiat gets naughty, supposedly, with the 500 Cattiva special editions

Monterey car week is the perfect time for automakers to launch new concepts and debut special edition vehicles. But it's usually the big names in the luxury/performance world -- the heavy hitters, if you will -- that show up and show off. Cadillac unveiled the Ciel concept a few years back, BMW featured a Zagato roadster in 2012 and the Porsche 918 concept used Pebble as a stage for its first North American appearance.

Visions of Voisins

It'll be the largest collection of Automobiles Voisin ever assembled since the factory closed in 1937. Peter Mullin, collector extraordinaire of beautiful French cars of the art deco movement, has spent the last decade scouring the planet in search of some of the 200 or so remaining Voisins to feature in an exhibit of the marque opening this fall in his Mullin Automotive Museum. The result is 15 cars, one motorcycle and an airplane.

U.S. seeks 5 percent annual fuel-economy gains through 2016

The Obama administration today proposed gasoline mileage and greenhouse-gas pollution standards for new vehicles for model years 2012 to 2015, filling in the blanks for manufacturers en route to a 35.5 mpg national target in 2016. The Transportation Department and EPA proposal calls for fuel economy to increase by about 5 percent each year, starting from an average of 27.3 mpg for the 2011 model year, the agencies said in a statement. The average car buyer would save more than $3,000 in fuel costs over the life of a vehicle, the statement said.