Cadillac has been spotted testing a prototype for an electric compact crossover with similar styling to the mid-size Lyriq. It's the smallest of five confirmed Cadillac electric vehicles, and the debut should happen next year.

Porsche has revealed that a convertible was one of three additional body styles envisaged for the original Cayenne. Porsche even got around to building a one-off example during the convertible's design phase, but the project never proceeded from there.

Mercedes-Benz AMG's One hypercar has been spotted testing hard at the Nürburgring. It's possible AMG is preparing for an attempt on the lap record for production cars, a record AMG already holds.

You'll find these stories and more in today's car news, right here at Motor Authority.

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