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Pagani, Mercedes-AMG say V12s are separate

Italian sports-car maker Pagani and Mercedes-AMG, the high-performance division of Mercedes-Benz, on Thursday said that the engine for the future Pagani C9 supercar is not the same engine used in the Mercedes-Benz SL65 AMG Black Series roadster. The unusual announcement--automakers typically don't comment on future-product programs--refutes reports about the Pagani C9's engine. In January, Road and Track magazine reported that the V12 for the C9 was derived from the V12 in the SL65 Black Series.

Fiat 500 gets 3-star safety rating from NHTSA

The slow-selling 2012 Fiat 500 now has another obstacle in its sales path: It has been tagged by the National Highway Traffic Safety Administration with a three-star safety rating, the lowest of any new model tested so far. The two-door subcompact received four stars from NHTSA for frontal crash and rollover accidents but received just two stars for side-impact crash safety, the agency announced on its Web site, safercar.gov. The tests gave the car a combined overall safety rating of three stars, NHTSA reported.

Aston Martin eyes Lagonda comeback

The last time we saw an Aston Martin Lagonda on the street, it looked like its sharp angles could deflect not only police radar and laser, but give pedestrians a paper cut if they weren't careful. And the last time we saw a Lagonda concept -- at the 2009 Geneva motor show -- it looked like, well, like what you see above. We're still not sure what we see above, and leading scientists aren't sure, either.