4N Motorsport on Instagram: "Sounds clips from @bimmerinvasion LA! I did not launch the car since last year I ended up destroying the clutch. The 4N GT4 build is setup for road course racing with a very lightweight small 7.25 twin disk clutch. I did one burnout down the strip from the burnout box and then 4 more back to back rolling start passes so you guys could hear this car in person 🔥🤘 #bmw #bmwm #racing #motorsport #performance #cars #n55 #s55 #m3 #m4 #m2"