1909-1916 Antique Shrader-universal Tire Pressure Gage Continental Rubber Works on 2040-parts.com

Watch the Porsche 911 GT3 rear-steering system work

A handful of manufacturers have offered four-wheel steering in the past including Honda, Nissan, BMW, Mitsubishi, Mazda and, most recently, Acura and Porsche. On Monday, suspension expert Elephant Racing uploaded a video to its YouTube channel demonstrating the feature on the 2014 Porsche 911 GT3. In most four-wheel steering cars--Acura and Porsche included—a computer controls the movable rear wheels.

Alfa Romeo Disco Volante returns to Geneva, this time in green and gold

Just about everyone loved the Alfa Romeo Disco Volante by Touring Superleggera that debuted at the 2012 edition of the Geneva motor show. The curvy coupe channeled the design of Alfa Romeos of the 1960s, namely the Alfa Romeo 2000 and 2600 penned by Touring, while appearing modern at the same time. The concept, finished in red at the time, drew praise for its good looks, enough to make just about everyone forget what sort of monster lived under that svelte bodywork: the Alfa Romeo 8C Competizione, powered by a 4.7-liter 450-hp V8 good for a 0 to 60 sprint of 4.2 seconds.

2012 Saab 9-5 SportCombi: More photos +video

Saab 9-5 SportCombi - Debuts at Geneva It’s good to see Saab suddenly bursting in to life. We’re sure Saab don’t see it that way, having no doubt slaved away for the last year to get business back to some sense of normality after the GM sale debacle, but from outside that’s how it seems. Still, the flurry of activity heading in to Geneva is good to see.