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Autoweek in review: What you might have missed

Mercedes-Benz will offer its flagship SLS AMG as the 2013 SLS AMG GT late this year. It will get a boost in horsepower and a refreshing for the upcoming model year. The SRT Viper was caught on the streets of metro Detroit.

VW to intro Passat BlueMotion Concept at Detroit auto show

While performance heads are anxiously awaiting the North American debut of the hot-heat Mk VII Golf R at the Detroit auto show, Volkswagen's Passat BlueMotion Concept offers never-before technology in the Yank/Canuck family sedan segment: a four-pot motor with cylinder deactivation. Based on the EA211 1.4L turbo motor we sampled last year in the Euro-market Audi A3 sedan, the Passat BlueMotion Concept's engine is capable of shutting down the middle two cylinders during cruise, and features the Jetta Hybrid's gearbox, a twin-clutch unit capable of decoupling from the engine during off-throttle coasting. In the Passat's application, the 1.4 puts out 150 hp and 184 lb-ft of torque; VW suggests its highway fuel economy will stand at 42 mpg.

Lamborghini Gallardo facelift (2012) first official pictures

Lamborghini’s entry-level Gallardo supercar has been on sale since 2003, and in that time has already seen a major facelift and new engine, as well as a dizzying myriad of special editions. With no imminent replacement, Lambo has injected a last dose of tweaks into the baby raging bull, with an angular new front and rear fascia, more personalisation, and another bewinged special edition model. The 2012 Lamborghini Gallardo LP560-4 What’s new on the Gallardo?