There are a whole lot of people we could talk about being the 'worst' driver.
One of my top 'worst' drivers of all time would be Ray Schepis. He was not only bad, he was a hothead who would scream at other drivers after he drove bad.
Some gold timers like Jack Betts were not really bad drivers. They made themselves look bad, but when their money was down thy were great drivers. Jack usually won about one race per year with each horse.
Lebanon has long been called the cradle of drivers, but they used to have a load of horrible drivers.