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Zagato TZ3 Stradale: Alfa curves meet America muscle

The beautiful Alfa Zagato TZ3 Stradale There’s been a lot going on to celebrate the centenary of Alfa Romeo, not least the cars created to pay tribute to a marque that still oozes petrol from every pore. January 2011 saw the Alfa Romeo Pininfarina Concept at Geneva Motor Show, April saw the Alfa Romeo TZ3 Corsa début at Villa D’Este and Christmas had us expecting a Zagato TZ4 Stradale after Zagato’s Christmas card seemed to show what we thought could be an Alfa Romeo Zagato TZ4 all wrapped up in a bow. Now, four months on, Zagato has taken the bow of the Christmas present and presented us with the Zagato TZ3 Stradale, beautiful Alfa curves and based on a … Viper.

Porsche 911 cabriolet: First official photographs

Porsche has developed an innovative fabric and composite-plastic folding roof for the 911 cabriolet as part of a push to give it a cleaner appearance, improved aerodynamic efficiency and greater levels of refinement than its strong-selling predecessor. Pictured here officially for the first time ahead of its world premiere in January at the Detroit auto show, the new open-top 911 is planned to go on sale in North America in 2012 in Carrera cabriolet and Carrera S models. Eschewing the traditional multilayered fabric structure of the 997 series 911 cabriolet, the next model (991 series) adopts a specially developed lightweight roof that uses two fabric-skinned composite plastic panels for the upper and rear part of the structure, giving it a more uniform shape together with a tauter fit that is claimed to make it more resistant than before to buffeting at high speeds.

GM reveals new, highly modular Ecotec engine family

GM introduced its new modular family of Ecotec engines on Wednesday at its powertrain headquarters in Pontiac, Mich. The new, reduced-in-size three- and four-cylinder mills will replace three of GM's current engine families, eventually making their way into five of the company's brands. The Ecotec family will eventually spawn 11 engines in total, ranging in displacement from 1.0 liter to 1.5 liters.