I never took the driving test because I had drivers education. Getting my license was easy, walk into the MVD, show them my drivers ed slip and walked out 3 minutes later with a shiny new license.
I passed my motorcycle permit test the first time i took it and missed 3 question. On accident I let it expire more than 6 months later and at the time I thought I could go in and just take the riding test. Well I needed the darn permit before I could get it. I took the test again without looking at the book in 6 months and....failed. Everything that came naturally when riding was wrong. They go by the book which is purely theoretical. I took it a few days later and Aced it 100%.
The riding test I havent officially taken but I tried it one day and I did it all without putting a foot down. Racing single track is definatly good practice.