What does better driving have to do with Ramadan? A lot, people tend to drive like monkeys on crack when they are fasting. Get in your car, say the duaa and relax. Inhale, exhale and start your car. Be considerate of others. Causing an accident is not being a good Muslim. Double parking is not being a good Muslim. Driving in the wrong direction and generally ignoring traffic laws is just being a bad Muslim and a bad person.
There are other people in the world besides yourself. They all have places they would like to get to in a hurry, so relax and let go. Being a couple of minutes late is not the end of the world. Listen to quran while you drive or download interesting lectures or audio books to make your drive more entertaining or offer to drive a friend or relative somewhere so you can focus on having a good time instead of fighting traffic.
Drive safe and always wear your seat belt.