2004-2008 Mini-Cooper Convertible Top It’s time to repair your old, worn convertible top with a new Mini Cooper soft top replacement with high-quality Haartz material. Using patterns created by experienced craftsmen, we take factory original fabrics and materials to ensure that your Mini Cooper replacement top boasts a pristine appearance and flawless construction. The Quieter Choice in Topping Material Twillfast RPC is an upgrade to standard materials. It has been acoustically enhanced to provide up to 2dB (a noticeable) sound reduction improvement over standard topping. When considering your Mini Cooper convertible top repair options, let Auto Tops Direct be your first stop. Our Sierra Auto Tops glass window convertible tops are made in the USA using unique, patented window bonding technology guaranteed to last.