- Based on 2025 Highway Code
- Updated for January 2025
Diagnostic Theory Test
The following 15 multiple-choice questions are designed to help you get a rough idea of how much you already know about driving rules in the UK. These are the practice questions that are most often missed by our users. This test will help you quickly identify gaps in your knowledge of driving a motor vehicle, which will be especially useful if you're just starting to prepare for the car theory test. Each of our practice tests uses real questions straight from the source - the official Highway Code. All our materials are based on the same topics as the official theory test as supplied by the Driver and Vehicle Standards Agency (DVSA). On the official test, you'll have 57 minutes to answer 50 multiple-choice questions. Good luck with these practice questions and with the actual test.