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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.

Honda Urban SUV Concept tease previews new baby Honda SUV

Honda has revealed a single sketch of an Urban SUV Concept that will debut at the Detroit Auto Show and previews a new baby SUV. The compact SUV, and sub-compact SUV market are growing strongly as car buyers eschew traditional small saloons and hatchbacks in favour of something perceived as a bit more rugged and more able to negotiate the urban jungle. So the tease photos of the Honda Urban SUV Concept – which will debut at the Detroit Auto Show in January 2013 – is pointing directly at a new baby Honda SUV likely to hit car showrooms in a couple of years time, and likely to be based on the new Honda Jazz.

Fisker Karma drives Laguna Seca

The Fisker Karma out testing at Laguna Seca But unhappy as we are at Cars UK with the world’s obsession with all things green – and hybrid / electric cars in general – even we have to admit that some of the work that’s going on does impress us. The Tesla Roadster is a great achievement – if madly expensive for what it is (an electric Lotus) – and the work Koenigsegg are doing with the Quant is very exciting. But one company that is efficiently going about putting together a workable, high performance car is Fisker, who have been working on their electric saloon car – The Fisker Karma – for less than two years.