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

Porsche 911 GT3 R Hybrid race car revealed

Porsche will bring its latest hybrid know-how to the racetrack in the form of the new 911 GT3 R Hybrid, revealed here for the first time prior to a planned public premiere at the Geneva auto show in early March. Developed by a team of engineers at Porsche's Weissach R&D center, Porsche plans for the stripped-out race car to act as a rolling laboratory. The German carmaker wants to explore the potential of hybrid drivetrains in a racing environment before an expected announcement that it will return to the 24 Hours of Le Mans in a factory capacity, perhaps in 2012, with a race car boasting technology based on that used in the 911 GT3 R Hybrid.

Pace cadets: At AMG academy, students take their finals with their right feet

Mercedes-Benz USA launched the AMG Challenge in 2002, a program touted as "a chance to experience the thrill of driving the newest Mercedes AMGs on some of America's best racetracks." This year, MBUSA abandoned the Challenge in favor of the AMG Driving Academy, a multistage driver-development program pioneered by AMG in Europe. The difference? According to Greg Clark, AMG manager, "the Challenge was more about the cars, while the Academy is more about the driver." Having participated in both the Challenge and now the Academy, we'd say that difference is subtle, at least as it applies to the one-day program.

Ram drops 3.7-liter V6, adds Pentastar for 2013

Ram will drop its 3.7-liter SOHC V6 engine for the 2013 Ram 1500 pickup. The 3.6-liter Pentastar V6 will take its place. The new engine will come standard with the company's eight-speed automatic transmission.