Citroen Numero 9 Concept & 3 new Citroen DS models on the way

Citroen Numero 9 Concept Citroen has revealed the Numero 9 Concept ahead of the Beijing Motor Show – which we thought was the DS9 – and revealed 3 new DS models planned. The Citroen DS range is due to launch in China during 2012, and the impressive Citroen Numero 9 Concept – which we’d assumed was going to be the Citroen DS9 (and may still be) – has been conceived to mark the launch of DS at Beijing later this month. A big Citroen flagship has been on the cards for some time and the Numero 9 is an evolution of the Citroen Metropolis Concept, which we thought could become the DS6, and is probably destined to go in to production at some point as the DS9.

2014 Kia Optima: New York Auto Show 2013

Kia has revealed the 2014 Optima at the New York Auto Show with cosmetic and technical tweaks. Due in the UK early 2014. The new Optima isn’t exactly new, but a facelift rather than a comprehensive workover.

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.