does anyone else have or had this problem before. It happens when i drive to work everyday on the highway. There is a vibration coming from the gas pedal when im driving, it starts at 60mph and it peaks out at around 80mph, go any faster and everything is smoothe as butter. It happens while accelerating and when not accelerating, the vibration is there. Wheels and tires are stock S-class 18" AMG with dunlop tires about 6 months old, straight from the factory. Could it be anything to do with the tranny? i do have a slight leak around the fluid pan.