The BMW M7 rumors refuse to die as Autobild is reporting the company will introduce a high-performance version of their flagship sedan.

The BMW M7 rumors refuse to die as Autobild is reporting the company will introduce a high-performance version of their flagship sedan.

Set to battle the Audi S8 and Mercedes S63 AMG, the M7 is rumored to have a sportier front fascia with larger air intakes.  The model is also slated to feature new side skirts, a rear diffuser and the exhaust system from the M5 / M6 Gran Coupe.

Power would likely be provided by an upgraded version of the company's twin-turbo 4.4-liter V8 engine.  While nothing is official, speculation suggests it would produce approximately 600 PS (441 kW).

If everything pans out, the BMW M7 will be introduced sometime next year and cost around €140,000.

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