I found a local mechanic that works on Mercedes, BMW & Crossfire vehicles. He indicated that he thinks it is indeed a fuel issue and may have to do with the fuel pump not properly priming the gas line resulting in a rough start. He said he will need to keep the car and check it when the rough start occurs as he has the equipment to do that. He already hooked up my vehicle to his scope and ruled out the cam & crank sensors that he said are working. He indicated that there are two types of fuel pumps for my vehicle. Does anyone know which fuel pump applies for my 2005 SRT 6?