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

BMW to offer four-cylinder diesels in North America to improve fuel efficiency

BMW will offer four-cylinder diesel engines in North America as it seeks to improve fuel efficiency and match the performance of its current six-cylinder gasoline engines. BMW is considering diesels in a range of models, including its 1 series, 3 series and 5 series sedans and possibly the X3 crossover and Z4 roadster, said Tom Baloga, vice president of engineering for BMW of North America. "You're going to see it in the 3 series, and the 5 series is a good possibility," Baloga said.

Ferrari shows next Enzo's HY-KERS V12 at Beijing

Ferrari stole a surprise march at the 2012 Beijing auto show when it announced a few details about its forthcoming Enzo successor. The powertrain you see here is essentially the hybrid supercar architecture which'll underpin the new hypercar being readied for launch later in 2012. Ferrari chief Amadeo Felisa told CAR the electric powertrain would lop 10% off the 0-124mph time - and its V12 is related to that in the F12, but with more power and 40% lower CO2 emissions.

U.S. says 90 percent of clunker claims have been approved

The U.S. Transportation Department says it has paid or approved $2.6 billion in cash-for-clunkers transactions, or 90 percent of the $2.9 billion submitted, as accelerated payments to dealers continue. A total of 534,598 claims for $2.3 billion were paid as of Sept.