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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.

Future products: Acura will push for luxury credentials without V8, RWD

The dreams of getting a V8 engine, rear-wheel-drive platforms and a sports car to replace the NSX have died for Acura dealers. Now the question is whether Acura can follow Audi's lead and elevate its brand from premium to luxury with front- and all-wheel-drive platforms. Meanwhile, Acura may return to two segments that it had abandoned by adding a compact car and a coupe.

Arizona auctions heat up

If you wanted to attend all of the automobile auctions in Arizona's Valley of the Sun this month, you already missed one if you didn't show up at the Scottsdale International Classic Cars Auction, Jan. 1-2. But there are plenty more.