There are three licenses available in the original Gran Turismo. Acquisition of each license is progressively more difficult to achieve than the last. Each license enables the player to enter more difficult events in career mode.
The Licenses are (in increasing level of difficulty) as follows:
Each license consists of eight driving tests, all of which must be passed within a specific time limit. Performance for each test is graded to only two levels: pass or fail. All 8 tests must be completed to acquire the license and, if the player gets all gold in every test of the license, a prize car.