For Audi A4 Quattro A6 Dorman Secondary Air Injection Check Valve on 2040-parts.com

Mecum to offer Salmon Brothers Collection at no reserve

Twin brothers Tom and Don Salmon don't need words to express their enthusiasm for classic American cars. Their massive collection of domestic sheetmetal, accumulated over four decades, speaks volumes. If you share the Salmon brothers' passion and are itching to get your hands on a classic, you're in luck—the entire collection is heading for the auction block on June 16.

Concept Car of the Week: Lincoln Sentinel (1996)

After a decade of the rounded forms of bio-design, car manufacturers worldwide wondered what the next big trend would be. Ford's answer appeared in 1995 with the breathtaking GT90 that inaugurated the experimental 'Edge Design' era, defined by its use of precise edges, tight lines and sharp graphics. The following year, Lincoln unveiled an evolution of the same theme, this time on a luxurious flagship concept rather than an open supercar.

Ford Mustang Shelby GT500 Super Snake, for when 540 hp isn’t enough

There was little doubt that Shelby would call it a day following the completion of the 2010 Ford Shelby Mustang GT500. After all, 540 hp just might not cut it for some Shelby faithful. So to take the 2010 GT500 to the next level, Shelby revealed the Super Snake package at the Mid America Ford and Team Shelby Nationals in Tulsa, Okla.