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Concept Car of the Week: Nissan NX-21 (1983)

In the early 1980s, with the new millennium still seemingly an age away, Nissan Design America was tasked with imagining the family car of the future, while giving potential buyers a preview of the forthcoming N13 NX and EXA models. The resulting concept would be shown at the Tokyo motor show in 1983. Given confidence by the increasing success and expanding global presence of Japanese cars, including the previous generation N12 NX, Nissan's designers, led by Tom Semple, decided that the NX-21 (for 21st century) was the answer.

2011 Porsche 911 GT3 RSR revealed

The 2011 Porsche 911 GT3 RSR made its international debut on Dec. 11 at the Porsche R&D center in Weissach, Germany. The 4.0-liter, six-cylinder boxer engine has a new engine-management system, modified air-intake housing and redesigned exhaust system.

Saab targets German luxury foes with a new 9-5

The redesigned 2010 Saab 9-5 Aero sedan is big, filled with technology, and designed and engineered to compete with the Audi A6 and the Mercedes-Benz E-class sedans. “The new Saab demonstrates that we are alive and kicking,” said Victor Muller, CEO of Spyker Cars NV, the Dutch sports-car maker that purchased Saab from General Motors Co. in February.