My '91 300ce has a slight pulsing type vibration that you feel at high speeds 60-70+ when on a smooth road. It feels like it is in the front end of the car. I noticed in the records the original owner gave me, that they had had bent wheel repair work done. I know the wheels are the originals therefore the wheel that had the work done on it is still on the car. Could this be causing this slight vibration, also there is a slow air leak in one of the front tires (which are new Michelins). The previous owners told me they had replaced the tire due to slow air leak problems....wondering if this could be caused by a bent wheel as well?