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

40 Years of Mmmm

In 1972, the Dow Jones closed above 1,000 for the first time, the Olympic Games in Munich were marred by the killings of 11 Israeli athletes, gasoline averaged 55 cents a gallon, Bobby Fischer became the world chess champion and the last U.S. troops withdrew from Vietnam. It was also a notable year for German automaker BMW, as that year saw the birth of its famed M division.

Report: Gasoline engine has big bang for the fuel-economy buck

A government report says improving the gasoline engine will yield huge gains for the consumer and the environment as automakers consider ways to improve fuel economy over the next 14 years. The Obama administration's technical assessment looked at four technology scenarios by which automakers might attain suggested CAFE goals of 47 to 62 mpg for cars and light trucks by 2025. The scenarios differed by the portion of an automaker's fleet that was accounted for by electrics, hybrid electrics and plug-in hybrid electrics.

Costs put Mini Rocketman at risk

BMW is not ready to commit to building the Mini Rocketman, a minicar concept that debuted in March at the Geneva auto show. The reason? Executives say privately that they fear that the Smart competitor would not be profitable.