Hi there! A button on the roof generally refers to a roof spoiler. Roof spoilers are attachments that are mounted on the roof of a vehicle to improve its aesthetics and enhance rear downforce for better handling at higher speeds. Based on the results, the VW Polo 8 GTI Type Roof Spoiler for R999 and the Roof Spoiler Compatible With Vw Polo 6 Ottinger for R875 seem like great options to consider. Both are dedicated spoilers designed specifically for those Volkswagen models. A spoiler will not only make your car look sportier but also improve stability at high speeds. Let me know if you need any other details!
