Suzuki King Quad 700 Clutch Kit 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.

Concept Car of the Week: Chevrolet Astro (1967)

It gave its name to a boxy van in the 80s, but the Chevrolet Astro I was one of the most exciting dream cars developed within the GM styling studio. Presented in New York Auto Show in 1967, it was the first of three Astro concepts shown in annual succession and illustrates GM's desire to develop models that were both aerodynamic and attractive. What we might take for granted in aerodynamics nowadays was almost untouched territory in the mid ‘60s.

Pebble Beach: Tour Terrific

These ain't no trailer queens. While you might expect that a car that cost more than a million dollars to restore beyond its original glory would be something you'd keep in a sealed zip-lock freezer bag in the guarded basement of a museum, the vast majority of the entries in the Pebble Beach Concours d'Elegance are actually driven on the street. Or at least they are driven once before the big show.