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Tomorrow’s world: Fiat's MultiAir engine tech

By Jesse Crosse Motor Industry 14 October 2009 16:50 Fiat this year launches what it claims is a big step forward in variable valve timing: MultiAir. It's the first time that a manufacturer has made a properly variable valve system a production reality, and will slowly be rolled out across most of Fiat's and Alfa's car ranges.How does Fiat's MultiAir vary from existing variable valve timing (VVT) systems?Current VVT systems rely on mechanical systems to open and close the valves. Engineers have long understood the benefits of changing valve opening and closing times to tweak an engine's power and emissions performance, depending on the need for power or parsimony.Valves are an engine's nose and mouth – it inhales through inlet valves and exhales through exhaust valves.

Michelin Challenge Design 2015: Jury meeting and entry review

Michelin Challenge Design has held its annual jury meeting and review of entries. The event took place at the Canepa Motorsports Museum in Scotts Valley, California on 14-15 July. The museum is home to a large number of significant racing cars, including a rare 1976 Tyrrell P34 six-wheel Formula 1 car, a 1969 Porsche 917K and the 1985 Rothmans Porsche 962C.

Mazda2 will get an upgraded interior

Mazda Motor Corp. said Thursday that it is installing upgraded features for the North American launch of the 2011 Mazda2 this fall. The automaker unveiled the interior of the five-door hatchback at the Canadian International Auto Show in Toronto.