Sorry, this is public forum so I can't comment too much. Let's just say 680 up north.
Setup I have might make it little easier, 245/35/21 and 275/30/21 on Aplina. Approach corner at mid/high speed then down shift to keep RPM around 4K, power it out on the exit, 516 lbs/tq will just break the tire lose for maybe ½ sec then sport+ Activetraction control will kick in to try to save it. Now just need to find a way to turn off traction control completely by coding….I know F10 forum is pretty active on this kind of stuff.
2012 750iAH Mineral White, Oyster Nappa with Fineline Matte Wood trim. Cold, Driver Assistance, Luxury, Instrument panel leather, Sdadowline and BMW Apps. 4.6sec 0-60, World's Fastest Street-Legal Hybrid.
2011 X5 50i M Sport Alpine White, Tobacco with Aluminum trim. Tech, Premium, Rear Climat, Cold packages. LDW, Smartphone, 3rd row and HUD.