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

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.

Autoweek's 2014 Best of the Best Finalists -- sneak peek

Every year, as hundreds of new cars and trucks pass through our fleet for evaluation, we are always on the lookout for those dazzling few deserving more careful scrutiny for our top honors, the Autoweek Best of the Best. It's down to three cars and three trucks that our regular readers quickly will recognize in the video above, designed to whet your appetite as we get further along in the judging. We'll be bringing you full details on our Best of the Best/Car and Best of the Best/Truck finalists in the coming days, along with updates as we get closer to announcing our winners in the December 23 issue of Autoweek.

Hummer nears the end of the trail

The curtain is rapidly falling on Hummer, General Motors' ill-fated rough-and-tough brand of trucks and SUVs. The final H3 rolled off the assembly line at 9:07 a.m. Central time on Tuesday at the Hummer factory in Shreveport, La., marking the end of production for the brand, a spokesman said.