The M5 will feature leather upholstery, an Alcantara headliner, aluminum trim, and a revised instrument cluster. See the pictures inside.

A member from e39-forum.de caught a 2012 BMW M5 (F10) parked at a rest stop outside of Barcelona.

While we've seen the exterior many times before, this is one of the rare instances the interior has been snapped for a close up. As the pictures show, the M5 will feature leather upholstery, an Alcantara headliner, aluminum trim, and a revised instrument cluster with red needles.

Under the hood, the M5 is expected to use the twin-turbo 4.4-liter V8 from the X5 M / X6 M. It will be tuned to produce up to 592 hp (441 kW / 600 PS) instead of 547 hp (408 kW / 555 PS).

The car is expected to debut at the 2011 Frankfurt Motor Show, so stay tuned to WCF for continuing coverage.

[UPDATE] Photos removed at the reuqest of the owner.

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