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

GM profits surge to $3.2 billion in first quarter

General Motors on Thursday posted net income of $3.2 billion for the first quarter, its fifth straight quarterly profit since emerging from bankruptcy. Stripping out one-time charges and gains, including $1.6 billion in income from the March sale of GM's ownership in Delphi Automotive, GM earned $2 billion before interest and taxes. GM's net income for the January-through-March period a year earlier was $865 million.

BMW, Mercedes consider return to 4-bangers in U.S. market

Facing stricter fuel economy standards, BMW and Mercedes-Benz are considering bringing four-cylinder engines back to the United States. BMW stopped offering four-cylinders in 1999 when its 318ti hatchback flopped. Mercedes-Benz had four-cylinder engines on the 2005 C230 and SLK230 but dropped them in favor of six-cylinder models.

Porsche 918 Spyder races toward production

OK, let's put the usual arguments to rest first: The Porsche 918 Spyder is going to be even faster than the Carrera GT in a straight line. That's based on Porsche's own computer simulations in anticipation of the production version of the gasoline-electric-powered 918 Spyder, which is due to roll off a dedicated line within a decommissioned paint shop at Porsche's Zuffenhausen, Germany, headquarters next year. The claimed 0-to-62-mph time is 2.8 seconds; 0-to-124 mph is 8.9 seconds, and top speed should be about 202 mph, thanks in part to series of active aerodynamic functions, including a multistage rear wing.