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For new CAFE rules, automakers place high-stakes tech bets

Game-changing 2015 fuel economy rules are forcing vehicle development teams to make high-stakes bets on expensive technologies--bets that will separate the winners from the also-rans. Not only do federal rules target a 2015 fleet average of 35.5 mpg, up from the current 27.5 mpg for cars and 23.1 mpg for light trucks; they force automakers to bet on different technology packages for each vehicle segment. Companies that do best at mixing technologies while keeping down costs will have an advantage when buyers wince at higher stickers.

2013 Audi A4 Allroad quattro a familiar trailblazer

It's no secret we love our high-riding SUVs and crossovers in the United States, but cars still outsell utilities by a 2-to-1 margin. For automakers, that's a clue that there is significant sales potential to buyers who pine for an off-road vehicle but secretly desire a sportier, more carlike cruiser for the highway. For Audi, the answer is the A4 Allroad.

Tata ramps up production of Nano to boost slow sales

Tata is cranking up supply of the Nano in India to counter sluggish sales. Until now, supply has been pretty limited with sales most months struggling to break beyond four figures; hardly the breakthrough expected from the widely hyped cheapest car in the world. A new plant in Sanand recently came on stream and it has a capacity of 250,000 cars a year.