2x BMW M4 Hamann w/ Akrapovic Exhaust! Loud Sounds!!

In this video you see a BMW M3 F80 fitted with an Akrapovic exhaust system and two BMW M4’s which are tuned by Hamann Motorsport. These cars are also fitted with an Akrapovic Exhaust system! Hamann Motorsport tuned the 3-liter biturbo inline 6-cylinder engine to 520 HP and 700 Nm (516 lb-ft) of torque while the aerodynamics were also improved. The front bumper received a new splitter while the boot lid now has a proper wing on it for more downforce. Which one of these BMW’s do you like the most? The M3, t