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Geneva motor show: Autoweek editors' picks

From the wildest, most absurd supercars only a few oligarch gazillionaires will ever own to dinky econohaulers giving mobility to whole populations, Geneva had it all. We ogled everything from McLarens and Maseratis to Twingos and Tatas. If in fact Europe is still struggling in some ways to recover from the recession, it sure didn't look that way at the Geneva motor show: The Swiss show was out of neutral and had the hammer down.

CAR tech: Audi's miracle e-fuel (2013)

Global warming; sky-high oil prices as reserves peak; spiralling crop prices and intense pressure to find fertile land – society faces immense challenges, as it strives to protect the planet and keep our cars on the move. Audi is working on a miracle fuel that could help mitigate these problems, in a facility under construction in the uncompromising, scorching environment of New Mexico, USA.  Not content with having a range more diverse than London’s World Pride parade, Audi is moving into the fuels business, in partnership with US biotech firm Joule Unlimited. The pair are developing carbon-neutral synthetic fuels, called e-fuels in keeping with Audi’s E-tron eco brand.

Super Bowl Sneak Peek! Mercedes teases new cars

So Aaron Rodgers has 300 passing yards and four touchdowns, and the Packers are killing the Steelers. Or maybe Ben Roethlisburger is keying in on this third Super Bowl title en route to a Pittsburgh smashing. Either way, enthusiasts should keep watching, because Mercedes-Benz has a surprise in store in the fourth quarter.