There are ways to remove scratches from car paint without purchasing any special tools. Purchasing shoe polish that matches the color of your car and rubbing it over the scratch is a good way to remove scratches from car paint. Once the shoe polish is applied, use sandpaper and sand over the shoe polish. This will even out the scratch. Completely remove the shoe polish when sanding. Use a cloth to buff the scratched area. Finally, wash the scratched area to remove any additional dirt. This method should remove scratches from car paint. If the scratch is still visible, you may need to take the car to a garage or mechanic.
For more info, see Best Car Scratch Remover Options