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London's GPS-based speed-limit trial puts Big Brother's foot on the gas pedal

A fleet of 12 Toyota Priuses in London have been fitted with GPS-linked speed limiters to measure how drivers respond to having their speed controlled by a computer rather than their own feet. For now, the trial is local to London, run by Transport for London, the agency that manages the city's roads, buses, subways and trains. The agency is using its own fleet of Priuses for the test and will add a bus and a taxi later this year.

Burnin' for You: Porsche Cajun gets the green light for production

The Cajun is a go. Porsche will continue to pepper the SUV market with a new entry below the successful Cayenne, and the Cajun is expected to launch in North America in 2013. Porsche's supervisory board instructed the company to develop plans for production in a meeting on Monday.

Dodge Caliber SRT4 dies quick and painless

Dodge is dropping its fastest, most powerful small car for the 2010 model year. The Dodge Caliber SRT4--a turbocharged, muscle-bound version of the Caliber--is being discontinued. "The Dodge Caliber SRT4 was planned for a limited production run in the highly competitive sport compact market segment," Dodge said in a statement.