The guys from Cars South Africa have had a BMW M4 Competition Package on their hands for a couple of days. They also had a track at their disposal and a couple other cars laying around so they though they’d put the poor M4 through a couple of troubling tests. So far the Bavarian machine trumped over everything they threw at it, from a Mercedes-AMG C63 S to the brand new Audi RS5. Therefore they wondered what car could possibly steal its thunder…

As it turns out, they threw another BMW against it, maybe that would tip the scale in a different direction for a change. The one they went with also happens to be the most expensive and the most powerful car the Germans are making these days. Yes, you guessed it, the BMW M760Li xDrive, otherwise known as the M760i in the US. The big bro of the M4 came prepared with its guns loaded and even a fridge hiding behind the rear seats.

Yes, the M760i shown here seems to be fitted with every possible option around and it must be tipping the scale well over 2 tons. At the same time, it has a 6.6-liter V12 twin-turbo engine, developing 610 PS and 800 Nm (553 lb-ft) of torque. Those numbers allow it to reach 100 km/h (62 mph) in 3.7 seconds, thanks to xDrive and launching in second gear, so that the transmission doesn’t blow to pieces due to the torque.

If you know anything about the M4 Competition Package you probably realized by now that on paper the M760i is faster. The 450 HP M4 has a claimed sprint of 4 seconds flat and that’s understandable due to its rear-wheel drive setup. However, numbers on a piece of paper are one thing while real-life results are another. Could the M4 win against a car that has both hefty weight penalty and a serious power advantage? Let’s see.