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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.

Lotus snags Ferrari designer

Another Ferrari man is heading for Lotus. Donato Coco will take over as director of design for the British company on Jan. 4.

Lamborghini Aventador J Roadster revealed officially

Lamborghini Aventador J Roadster After the leak of the Lamborghini Aventador J over the weekend, tonight we get the official reveal of Lamborghini’s stripped-out Aventador Roadster When we ran leaked photos of the Lamborghini Aventador J Roadster at the weekend we said it threatened to steal a bit of Ferrari’s limelight at the Geneva Motor Show – and it will. The Aventador J  Roadster is Aventador to the max, with all fripperies – including the windscreen and roof sacrificed in the pursuit of low weight and extreme performance. Lamborghini say the Aventador J is a four-wheeled sport-bike, and they’re not wrong.