I took the off my Aston with 91% alcohol with no problem. The ones I'm wondering about are the ones in the Bentley because they are leather. On the Porsche that came off with no problem.

 

I removed the stickers from my Alcantara visors this past weekend. I cut a paper towel just slightly larger than the sticker, soaked it in 91% IPA and laid it on the sticker. The first one I chickened out and started peeling after 2 minutes. It came off, but was a bit of work and in several pieces. The second I soaked for 3 minutes and it came off more easily in one piece. I cleaned up a small residue line at the edge of each sticker. There is a very feint shadow visible where the sticker used to be (due to peeling off a tiny bit of Alcantara fuzz with the sticker so it changed the nap very slightly), but it would never be noticed by anyone. Doing this is a no-brainer. Thanks for the courage!