You can use the FullBack bike rack # Y02634 on your 2014 Mini Paceman. I checked with Yakima and they do have other racks that will also fit and it appears that the way the racks are positioned on the vehicle there is little tension that will be applied to the spoiler.
You will need to use the straps in anchor mode though for the upper straps because the hooks on the regular straps will not be able to fit due to the spoiler. view full answer...