How to prevent rusting on a Vauxhall Insignia?

I recently purchased a used Vauxhall Insignia and noticed some rusting on the body. How can I prevent or slow down the rusting process?

Regularly wash and wax your car to protect the paint and prevent rust from forming.

Invest in rust-proof coatings or treatments to apply to the car yourself or have a professional do it.

Check for and repair any scratches or damage to the car's paint as soon as possible to prevent rust from forming.