There is no upper age limit. In addition to a driving licence, a CBT certificate may be required before a moped or motorcycle is ridden. In GB around 1.6 million people sit the practical car test per year, with a pass rate of around 43%, the theory test has a pass rate of around 51.6%.here is no upper age limit. In addition to a driving licence, a CBT certificate may be required before a moped or motorcycle is ridden. In GB around 1.6 million people sit the practical car test per year, with a pass rate of around 43%, the theory test has a pass rate of around 51.6%.