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

OnStar units to be sold separately from vehicles

Not sure what to do with those extra Best Buy gift cards left over from the holidays? Consider picking up OnStar as a stocking stuffer for next year. General Motors will sell its safety and communications technology in mirror units available at Best Buy starting in the spring.

Mercedes-Benz B-Class aerodynamics tested [w/video]

Mercedes-Benz has produced a video testing the aerodynamics of its new B-Class – which it claims is the most aerodynamically efficient car in the world – using a wind tunnel and fluorescent paint. The W245-generation B-Class has the lowest aerodynamic drag in its segment with a Cd of just 0.26, thanks to features such as serrated front wheel arch spoilers, optimized cooling airflow and a Pagoda roof to help airflow over its profile. The car's aero properties were put to the test at the MIRA vehicle test facility in the UK using fluorescent paint in 60mph winds to highlight its flow dynamics, only visible under UV lights.

Volvo S60 saloon (2010) unveiled

This is the new Volvo S60, and it’s the latest attempt by the Swedish safety-mongers to snatch a share of the small executive saloon market that’s dominated by the 3-series, A4 and C-class. Volvo has only released two exterior photos of the new S60 – we’ll see the interior closer to the car’s Geneva motor show unveil in March 2010 – as it wants to highlight the new car’s design. Under now-departed design chief Steve Mattin, the S60 has been created as the car that will start the differentiation of Volvo design and break the one-size-fits-all focus.