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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.

G25 axed from revised 2013 Infiniti lineup

Infiniti will trim the G sedan model lineup for the 2013 model year while adding some extra power to the EX and FX crossovers in the form of the 3.7-liter V6 found in the G37. Per Infiniti's naming conventions, the EX35 and the FX35 will become the EX37 and FX37 when the 325-hp, 3.7-liter V6 is slotted under the hood. The result is a 28-hp gain over the current 3.5-liter V6.

No special purchase schemes for electric Golf

VOLKSWAGEN has announced that the electric-driven e-Golf will be sold just like any other Golf. The company will not separate battery rental from the purchase of the car, unlike Renault's approach with the Zoe, meaning that customers who buy the e-Golf will also be buying the batteries. There will be no special incentives like access to other Volkswagen cars for a limited number of days per year, which is a scheme in place with the electric-powered BMW i3.