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Pace cadets: At AMG academy, students take their finals with their right feet

Mercedes-Benz USA launched the AMG Challenge in 2002, a program touted as "a chance to experience the thrill of driving the newest Mercedes AMGs on some of America's best racetracks." This year, MBUSA abandoned the Challenge in favor of the AMG Driving Academy, a multistage driver-development program pioneered by AMG in Europe. The difference? According to Greg Clark, AMG manager, "the Challenge was more about the cars, while the Academy is more about the driver." Having participated in both the Challenge and now the Academy, we'd say that difference is subtle, at least as it applies to the one-day program.

Rennsport Reunion IV closes with Porsche 917s tearing around the track

Rennsport IV, three days of serious Porsche love at Mazda Racway Laguna Seca, concluded on Sunday with a half-dozen races around the picturesque track near Monterey, Calif. And while there were a variety of all things Porsche to see and hear through the three days, Sunday saw some of Porsche's most powerful race cars take to the track. It was certainly a case of saving the best for last.

CAR tech: who's to blame for your car's terrible fuel economy?

In early 2013 Audi lost a case brought by the Advertising Standard Agency (ASA) because of ‘misleading’ fuel economy figures used in an advert, after a customer complained they couldn’t get anywhere near the 68mpg quoted. The court case once more exposes the yawning gap between officially sanctioned mpg figures and those experienced by owners. A recent study by the Independent Council on Clean Transportation (ICCT) looked at cars sold in the UK and Europe, and discovered the difference between official mpg figures and real-world driving had grown from 8% in 2001 to a barely believable 21% in 2011.