BMW has been spotted testing what appears to be a new performance flagship for the M5 range. Word on the street is that the car, which will likely be dubbed an M5 CS, is powered by a newly developed V-8.

Porsche looks to be readying a Cayenne GTS Coupe to help bridge the performance gap between the S and Turbo. The new variant should debut next year with around 470 horsepower on tap.

Can't afford a real-life driving coach? Then the Porsche Track Precision App could be for you. The latest version can now be displayed on a Porsche's infotainment screen as part of new functionality.

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

2021 BMW M5 CS spy shots

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