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Murray Walker 'astounded' by reunion with father's racing motorbike

VETERAN broadcaster and motorsports commentator Murray Walker was for once left speechless after he was reunited with one of his father’s old Rudge racing motorbikes. During a Royal Automobile Club dinner, where he was a guest of honour, the 90-year-old ‘voice of Formula 1’ was overwhelmed by a surprise unveiling of a group of classic racers that had been assembled by the Club on his behalf. Ever-fewer people remember that Graham Walker, Murray’s father, was a hugely successful motorbike racer with brands including Rudge.

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.

The Porsche 911: the car that shouldn’t work but does

Humanity might struggle perpetually with questions like the meaning of life, but it does know one thing for sure: rear engine cars are bad. Like a sling shot, the heavy engine at the back is always trying to overtake the driver in front. Anyone can understand that.Yet the Porsche 911 - one of the fastest cars on the market, and one of the most enduring in history - has its engine at the back.