Private equity firms are showing heightened interest in manufacturers of ambulances, fire trucks and other municipal or specialty vehicles this year, as the space is still depressed enough, post-recession, to allow the firms to strike attractive deals.

FORBES: Commercial Vehicle Manufacturers Attract Private Equity Interest

"It may have the appearance of an escorted convoy, with Serb trucks or buses traveling in line with NATO vehicles, but it is not, " Gourmelon said.

CNN: Police to take over Serb-held suburb

Heavy-duty pickups and vehicles like buses, delivery trucks, or vans would save one gallon for every 100 miles traveled.

WHITEHOUSE: The White House Blog: The President

Media reports have suggested Chrysler will winnow its lineup to 18 or 20 vehicles--perhaps six cars, six trucks and six SUVs--down from 30 today, but Press said those decisions haven't been made yet.

FORBES: Chrysler: Dealers' Turn For Pain

Pickup trucks with GVWR over 8, 500 lbs and passenger vehicles with GVWR of 10, 000 lbs or more are exempt from federal fuel economy testing.

FORBES: America's Dirtiest Vehicles 2013