As an approved instructor, I get a lot of enquiries from candidates who have a practical test in a day or two and are either looking for a driving test car, short notice mock tests to cover the dsa routes or a late driving lesson to make sure everything is okay. My experience has shown that most people who book short notice driving tests without their instructor's advice or knowledge do not pass because they have not prepared properly and done their homework to know completely what the DSA examiner is looking for.
While I will always do my best to help foreign licence holders to get up to speed on the UK practical car test, 2 hours is not long enough to get rid of bad driving habits or to cover all the routes or test maneuvers that you might get and the locations where they are carried out.
Everyone one wants to pass the driving test as soon as possible, but you can't cheat the system by hoping to get an easy route, not be asked to carry out a particular maneuver, or get a nice and kind examiner. If you don't give the DSA assessment the respect it deserves, then you are most likely to fail. So before you accept that online slot from a short notice test cancellation, make sure you have a car to take the test in, your instructor or intended one is available, and most importantly, that you the candidate is ready, prepared and have the confidence to perform all the tasks expected of you.
Driving Test Advice Video
Important! If you are not learning to drive with an instructor, it is important that BOTH you and the person teaching you to drive read The DSA official test guide, this book will greatly increase your chance of passing the driving test without spending too much money on lessons. You should also have a look at the top 10 reasons for failing the UK driving test.