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

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.

Porsche Cayenne Hybrid – proper details emerge

It’s a real sign of the times that Porsche is pushing ahead with Hybrid and diesels. Unthinkable just a few years ago, but the diesel Cayenne is already here, and now proper details are emerging on the Hybrid version. As you would expect with Porsche, their Hybrid is not exactly going to be a slouch.

Cycle-rail journeys 'almost triple'

MASSIVE increases to public transport network spending have led to the near-tripling of the number of ‘cycle-rail’ journeys taken since 2009, according to government statistics. An update on the coalition’s ‘door to door action plan’, published close to the New Year, details how huge increases in funding for secure cycle parking facilities and public transport integration have led to increased usage. The government is using the data to encourage more people to take up ‘greener’ ways of getting to work.