Mindful driving

I often found that driving to work and back to be the most stressful part of my day. And, to combat this I started to drive without the radio on and tried to focus my mind to the vibrations felt by the car, and the sounds of the engine and other cars. Now obviously some could consider this as dangerous. However, I feel it actually makes my driving safer, just wanted to know if anyone has ever read anything on this subject ? Obviously there are no teachings of the past on this subject