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

GM to sell bifuel Chevrolet and GMC trucks

While gasoline hovers at about four bucks a gallon, natural gas is priced at the equivalent of $1.89 per gallon. Chevrolet and GMC are hoping to take advantage of that disparity by offering bi-fuel heavy-duty pickups for fleet and retail customers beginning on April 19, the day before Earth Day. The bi-fuel option will cost buyers $11,000, on top of the price of the pickups.

Chevrolet Sonic turbo gets six-speed automatic

Chevrolet Sonic fans who want the turbocharged 1.4-liter engine but don't want a manual transmission are in luck. Chevrolet is now shipping the Sonic with a six-speed automatic mated to the turbo engine. Fuel economy for the turbo Sonic, despite the automatic, is 27 mpg in the city and 37 mpg on the highway, with a 0-to-60-mph time of about eight seconds, Chevy says.

Cyclists tackle round-the-world race

FOUR RIDERS have set off on what is described as the world's longest bicycle race. Three started from London and one from Bangkok in a bid to break the Guinness World Record for the fastest circumnavigation of the planet. The World Cycle Race launched from the prime meridian next to the Royal Observatory in Greenwich Park.