$5 billion competition on to replace Humvee

Competition is heating up to win a contract for a vehicle that will replace nearly 18,500 aging military Humvees for the U.S. Army and Marine Corps starting in 2015. Six proposals are in play, with little time left before federal contracting officials decide on development of the $5 billion-plus program.

Maeda named new Mazda design boss, replacing van den Acker

Ikuo Maeda is the new head of design at Mazda Motor Corp. The man who is credited with styling the Mazda's flagship sports car takes over for Dutchman Laurens van den Acker, 43, who has decided to leave the company "to pursue other interests," the automaker said in a statement today. Van den Acker, who joined Mazda in 2006, will remain at the automaker until April 10 to ensure a smooth transition for Maeda, Mazda said.

Arizona auctions: Scottsdale sales net an estimated $157 million

WITH VIDEO -- Five days of sales staged by auto auction companies in the Phoenix area pulled in a combined estimated total of $157 million, according to Hagerty Insurance. The five companies staging auctions--Barrett-Jackson, Gooding & Co., RM Auctions, Russo and Steele and Silver Auctions--offered 2,887 lots for sale and sold 2,325 of them, an 81 percent sell-through rate. A 2006 Ferrari FXX Evoluzione at the Gooding auction was listed as the top single sale with a price of $2.09 million, Hagerty said.