Finally gathered the courage to drill into the bodywork and I am so happy with the outcome! I went with the MB Wing and paint-matched the top side and left the underside as exposed carbon fibre. Being from South Africa, hardly anyone has parts for the Supra as it is a rare car here. Will be...
So strange as I also experience those vibrations - I had it often at high speeds or going up steep inclines. I tested your theory though and put the car in sport mode and not one single sound from second to third. Same in manual mode. Still is a complete mystery to me but will definitely be...