Mercruiser / Omc / Volvo 3.0 / 2.5 /120 / 140 -- Harmonic Balancer -- Original 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.

Honda Gear Concept

Rather than fighting for headlines at NAIAS, Honda debuted its new GEAR Concept at the Montreal International Auto Show. The subcompact GEAR is apparently inspired by fixed-gear bicycles (although quite how is unclear), described as a customizable vehicle that demonstrates the carmaker's way of providing vehicles for young, urban, Gen-Y lifestyles. "Subcompact cars are usually either utilitarian, but uninspiring or they're fun, zippy cars that are impractical and too expensive for the Gen-Y buyer," said Dave Marek, Design Director at Honda R&D Americas, Inc.

GM, Chrysler sales fall more than 40 percent; Ford, Honda also slip

The biggest automakers posted some of the sharpest U.S. sales declines in September as demand dropped to its lowest level since April in the aftermath of the cash-for-clunkers program. The seasonally adjusted annual sales rate was 9.51 million units.