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

Volvo S60 Polestar goes in to production

It sounded like a plan to put it in to production – even if it would probably need twin turbos to make it nicely wieldy on the road – and that’s exactly what Volvo and Polestar have done. The Volvo S60 Polestar has gone in to limited production, initially for the Australian market, but instead of the mighty 508bhp of the concept it has to make do with a more pedestrian 350bhp, little more than the V60 we reviewed last year with the Polestar upgrade. But the extra power is enough to get the production S60 Polestar to 62mph in 4.9 seconds and, thanks to tweaks to the suspension, brakes and aerodynamics, the S60 Polestar looks like it will be able to handle the power quite well.

Cadillac ATS and XTS sedans coming in 2012

Two new Cadillac sedans will join the brand's lineup in 2012, the full-size XTS and the smaller ATS. The products were confirmed on Thursday by General Motors North America boss Mark Reuss at an auto-industry conference in Traverse City, Mich. The XTS is based on the XTS Platinum concept introduced at the 2010 North American International Auto Show in Detroit.

AW gets a long-term natural-gas Honda Civic

For all those wanting to save the universe, may we introduce the latest member of the AutoWeek green car fleet--a Honda Civic GX. The GX is a regular Civic in every respect but one--its 1.8-liter four-cylinder internal-combustion engine is powered solely by compressed natural gas. The main benefit of this is that it achieves as close to zero emissions as you can get in a mass-produced passenger car.