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

Ten notable Saab models from history--the AutoWeek list

Technical specifications provided by Saab media On December 15, 1989, General Motors announced that it intended to buy 50 percent of Saab Scania's car business and to form a new company, Saab Automobile AB. Twenty years later, GM confirmed that it has a tentative agreement to sell Saab to a group led by Swedish supercar maker Koenigsegg Automotive. Here is a look at 10 notable Saabs: 1986 Saab 900 Convertible 1.

Driven: Citroen DS4

Recomissioning the DS name looked like a risk to many outside Citroen’s headquarters, including us. And the new sub-brand’s opening salvo – the DS3 – didn’t exactly calm the worries of those of us who hold the original in high esteem. Where was the ingenuity?

Chevrolet reveals more details of Camaro ZL1

The 2012 Chevrolet Camaro ZL1 will not be anywhere near as rare as its 1969 namesake when it arrives during the first quarter of next year, but the most powerful production Camaro to date should deliver performance easily worthy of its model designation. Camaro engineers on Thursday offered media members a preview of the upcoming Ford Mustang Shelby GT500 fighter, and the tale of the tape is impressive, especially in terms of grunt. The 6.2-liter supercharged LSA V8 will make 580 hp at 6,000 rpm and 556 lb-ft of torque at 4,200 rpm, besting Chevy's original targets for the engine's output and bettering its efficiency in the Cadillac CTS-V by 24 hp and 5 lb-ft.