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Autoweek in review: What you might have missed

The Chevrolet Volt went low voltage as the factory prepares to suspend production for five weeks in March. The move is designed to reduce inventory of the hybrid sedan. Autoweek's Mark Vaughn got behind the wheel of the new Fiat 500 Abarth for a test drive.

Porsche 918 Spyder: The first ride in the future game changer

Faster than the iconic Carrera GT yet more economical than parent company Volkswagen's frugal new Up supermini, Porsche's next supercar, the 762-hp gasoline-electric powered 918 Spyder, promises to offer the best of both worlds—scorching performance and ultralow consumption. Autoweek joins Porsche's engineering team for the very first test of the car that is already causing headaches in Maranello and Sant'Agata. For all of its intense promise and awesome potential, the very first running prototype of the upcoming Porsche 918 Spyder looks suspiciously like a refugee from a shadowy postapocalyptic movie set as it glides silently into view across the vast expanse of bitumen at the Nardo test track in southern Italy.

AC Mk VI: AC Cars return to the UK

Here's a blast from the past. AC has announced it's returning to the UK market and will exhibit the Mk VI version of its venerable roadster at the 2011 Geneva motor show. AC, a UK manufacturer that's 110-years-young in 2011 but with more regenerations than a Doctor Who convention, is establishing a new base at Brooklands.