New BMW M6 Coupe Boosted to 631-Horses by G-Power

There's no such thing as too much power when it comes to BMW tuning specialist and maker of some of the fastest Bimmers in the world, G-Power.

For its latest effort, the German brand is raising the pulse on the new BMW M6 Coupe (F13) with a performance package that starts with the 4.4-liter twin-turbocharged V8 lifting output from 553hp (560PS) and 680Nm (501 lb-ft) to 631hp (640PS) and 770Nm (568 lb-ft) – the same as G-Power's M5 tune.

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