At the moment, we'd be safe to say that AC Schnitzer's M6 Gran Coupe is the best option out there for those looking for a Gran Coupe with even more power and torque than the stock BMW.
Despite the fact that all reviews claim that the M6 GC has plenty of power and you simply wouldn't have any more room for some extra ponies, AC Schnitzer turned the 4-door coupe into an even more powerful monster.
Their version has 620 HP and 790 Nm (582 lb-ft) of torque that will send the car hurdling to 300 km/h (187 mph) in just 26 seconds. We used this benchmark because the one people usually talk about (0-60 mph or 0-100 km/h) takes way too little time to be achieved.
Since everyone responded so nicely to their upgrade kit, the German tuner decided to put together a commercial for the car. In this regard they used the Chateau St. Gerlach in Netherlands, the perfect scenery for such an elegant and powerful vehicle.
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