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Mercedes-Benz SLS AMG: The gullwing takes flight

Before we reveal what it is like to hot-lap a prototype version of Mercedes-Benz's 6.2-liter V8-powered SLS around the 2.2-mile Sachsenring in eastern Germany, let us tell you one thing that puts the big rear-wheel-drive coupe into clear perspective. The SLS, planned to get its first public outing at the Frankfurt motor show in September, is not based on any existing Mercedes model. Rather, it has been conceived, designed and engineered from the ground up in a no-compromise approach by the German carmaker's in-house tuning division, AMG.

One Lap of the Web: Rolls-Royce in Thailand, 130-mph lawn mowers and Formula One in Canada

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Check out some factoids about Formula One in Canada and how drivers have faired at Canadian tracks over time.

Concept Car of the Week: Dodge Charger III (1968)

In 1968, at the dawn of the muscle car era, the performance-oriented Dodge brand offered a unique range of powerful and iconic models such as the Charger, the Dart and the Coronet. While working in parallel on the Mk II production Charger, designers and engineers created the third in a series of concept cars carrying the same name that aimed to showcase futuristic design and technological innovations to arouse the public and test its reaction. Dodge general manager Robert B.