Though this is not scientifically proven, the 2012 CLS 63 AMG with the VR700 tuning package from Vivid Racing tuners might be the reason for the existense of crop circles. There is slight video proof provided by Vivid Racing themselves that you can watch above and decide for yourselves.
US tuners Vivid Racing take hold of the CLS 63AMG give it some nice add-ons, and bring it to the track to test the theory if what goes around comes around.
Though this is not scientifically proven, the 2012 CLS 63 AMG with the VR700 tuning package from Vivid Racing tuners might be the reason for the existense of crop circles. There is slight video proof provided by Vivid Racing themselves that you can watch above and decide for yourselves.