You can hire my car to use for your practical test. This costs £50.
I hope you can understand why this is more than my lesson rate. It's because the examiner won't always intervene (as I try to) to prevent damage to my tyres, wheels or paint if you happen to put the car into a pothole or glass, strike a sharp kerb, or hit a low-hanging branch.
I don't make a profit from this. It's simply a way of making up for the lower value of the car when I need to replace it and it has cosmetic damage, or needs the wheels realigning.