Are these compatible with a 1999 Mitsubishi Lancer?

Hi Hannah, Thank you for your enquiry. The Window Sox Vehicle Window Shades can be made to measure to fit any vehicle. To order you will need to contact your nearest Baby On The Move Store and quote the make and model of your vehicle. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder where you can find contact details for all our stores. We hope this has helped with your query.