Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

U.S. set to raise fuel-economy standard

Government regulators will get their prize of higher fuel-economy standards, and automakers will get the certainty of a national emissions standard, under new rules to be proposed Tuesday by President Barack Obama. The fleet average fuel economy for automakers will rise to 35.5 mpg in 2016 under the president's proposal--10 mpg more than today's mandate. At the same time, the president's proposed rule will cut carbon emissions, thought to be a key factor in global warming.

2011 Jeep Grand Cherokee to start at less than $33,000 for four-wheeler

Perhaps the most important vehicle to be launched by Chrysler this year, the 2011 Jeep Grand Cherokee, will start at a price that's a shade less than $33,000 for a four-wheel-drive model. The base model with two-wheel drive is $30,995. This Jeep, shown in concept form for more than a year, is critical to refreshing the Detroit automaker's aging lineup and generating some much-needed product mojo.

Mercedes SLS AMG Black Series (2012) first pictures

We’d be most surprised if you rejected the Mercedes SLS AMG for being too slow and too subtle, but if you crave a few racecar touches for your gullwing supercar then Mercedes will oblige with this: the SLS AMG Black Series. Like the ‘BS’ models that’ve gone before, the SLS Black employs a weight reduction, ramped-up power and better aerodynamics to give more extreme looks and performance. Read on for the full spec of a Mercedes with more power than a McLaren 12C Spider.