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Audi A3 e-Tron Hybrid revealed at Shanghai

Audi A3 e-Tron Hybrid Shanghai - yet another e-Tron Concept Where would we be at a major motor show without Audi and an e-Tron concept? So far we’ve had an Audi e-tron trundled out in everything from a super mini to a super car, and with a range of powertrains from a very sensible range-extender in the Audi A1 e-Tron to the frankly ludicrous claims of the first R8 e-Tron delivering 3,319lbs/ft of torque. What we get for Shanghai is the Audi A3 e-Tron.

Go racing on the iPad with PadRacer

The Apple iPad is looking more and more like a gaming device--in addition to the world-changing tablet we were promised. But no complaints here, the PadRacer game for the device looks like a perfect time-waster for people who are supposed to look busy. PadRacer (www.itunes.com, $5) is a top-view racing game for four players similar to the old Ivan “Ironman” Stewart’s Super Off-Road arcade game.

Fuel-tank probe rekindles old issue

The placement of fuel tanks on passenger vehicles has changed over the past three decades, and for good reason. Automakers gradually have repositioned the tank to an area in front of the rear axle, generally below the rear passenger seat. Statistically speaking, the tank in that location is less vulnerable in a high-speed, rear-end crash than in the previous location--between the rear bumper and axle.