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

Acura NSX laps Mid-Ohio

It didn't have the production engine, nor the production exhaust (it was gloriously loud) and because there were safety vehicles on the track it wasn't able to go flat-out, but by golly there it was, a bright blue 2015 Acura NSX lapping Mid-Ohio just before the start of the Honda Indy 200. Being a production mule with any number of systems still under development, it couldn't be turned over to just any driver. So it was piloted by Jason Widmer, assistant large project leader for testing for the new NSX.

Allan McNish: Le Mans 'toughest race of the year'

Allan McNish has won the Le Mans 24-hour enduro twice and lines up in the Audi R18 e-tron with nine-time winner Tom Kristensen and a new co-driver for 2013. He talks about the fight between Audi and Toyota and his accidents of 2011 and 2012. Hi Allan, what are you up to?

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.