ABT Sportsline introduces 700 hp Audi RS6 Avant

Hot on the heels of their appearance at SEMA and their announcement to open a location in the U.S., the German tuning firm ABT Sportsline has unveiled two new versions of the Audi RS6 Avant, dubbed the ABT Power S and ABT Power. Apparently, ABT Sportsline felt that the 560 hp output of the stock 4.0-liter TFSI-engined Audi RS6 Avant wasn't enough, and tuned the ABT Power S version to produce 700 hp. That's a 25 percent increase in power over the stock version.

Concept Car of the Week: Citroën C-Metisse (2006)

Citroen was on a roll back in 2006, in terms of its production cars such as the C4 and C6, but most notably in advanced design. The previous 'C-' range of concepts that started in 2002 with the C-Airdream, swiftly followed by the C-Airlounge and C-Sportlounge. But there's a feeling that the this fourth car in the series was the one that showed the PSA design team at its flamboyant best.

Concept Car of the Week: Plymouth XNR (1960)

In the early ‘50s, both GM and Ford offered attractive and exciting sports cars, symbols of a proud post-war America. Ford had the Thunderbird and GM the Corvette, but Chrysler's approach was more pragmatic, producing cars that were practical and robust but also slow. After commissioning a long series of concepts designed by Italian carrozzeria Ghia, Chrysler gave a free hand to its design chief Virgil Exner to inject some life into its lineup.