I have traded e-mails over the past few days with Steve hoping to have him make something for my GS400. He basically told me that the GS400 (due to its curved windows) is "not DIY-friendly" and that I "should not proceed". Meanwhile I saw his pics of the passenger-side rear of a Hyundai Sonata (also curved) with a full setup. WTF??? Can anyone provide a nice clean, fully functional curtain setup? Or do I have to call Mom and have her bust out the sewing machine??lol.