I have a 1993 BMW 318ISA with 157,000 miles. The brake rotors and pads are new on my car but I am hearing a roaring noise while I drive the car. It gets louder and worse the faster I go. It is also still present when I apply the brakes. I do have snow tires on the car and use the car for the winter here in Ohio. I feel like the car sounds like an small airplane with the noise it makes. The exhaust is original but seems in ok condition. Not sure if this could be the front bearings or maybe something with the transmission. Any guesses or anyone have this kind of problem? Thanks.