1. Small cars charge 5 yuan for the first 2 hours, and 2 yuan per hour for more than 2 hours.

2. For medium-sized vehicles, the fee is 7 yuan for the first 2 hours, and 2 yuan per hour for more than 2 hours.

3. For large vehicles, the fee is 10 yuan for the first 2 hours, and 5 yuan per hour for more than 2 hours.