Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Drivers of GM vehicles will be able to control car features via smartphone

Drivers of most 2011 General Motors Co. vehicles will be able to use a smartphone to carry out functions usually found on a key fob -- such as remote starting, activating the horn and lights, and remote locking and unlocking of doors. Chevrolet, Cadillac, Buick and GMC, working through OnStar, are developing brand-specific mobile applications than can be controlled on Apple's iPhone and phones using Google's Android operating system.

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.

Concept Car of the Week: Ferrari Pinin (1980)

Over the years, Ferrari has slowly built a reputation for the fact that any car that wears the prancing horse badge on its bonnet ought to be a design masterpiece. Everyone has their own personal favorite: 250 GTO, 250 GT California Spider, 330 P4, Modulo, Daytona, you name it...  Yet few would remember – or even know about – the odd ones, the ugly Ferraris hidden away, rarely allowed to see the light of day; a few rare cars that got brushed under the carpet as quickly as they appeared include the 365 GTC/4, FZ93 Zagato, the 408 Integrale and the Pinin. Most of them are the work of independent studios, long-distanced from Enzo's (dis)approval.