How to prevent rust on a Ford Focus?

I recently purchased a used Ford Focus and noticed some rust on the undercarriage. How can I prevent further rust and protect my car's value?

Regularly wash and wax your car to protect the paint and metal from moisture and road salt. Also, consider investing in paint protection film for areas prone to rust, such as the wheel wells.

Check for and repair any damage to the paint or coating immediately to prevent rust from forming. You can also use a rust inhibitor or rust converter to treat existing rust spots on your car.

Park your car in a garage or covered parking area whenever possible to protect it from water and salt exposure. Also, try to avoid driving on salt-covered roads.