There was a thread about original accessory carpet mats not fitting on Bravo's floor, because their clicking buttons don't fit the respective locking spots on the floor.

What I found is that the part of the clicking mechanism that is on the floor is meant to be removed when needed. It is done really easy by just pulling them right up. Just be careful not to break the plastic as it bends while pulling.

Once removed, you'll notice a sort of nut under the carpet that kept them in place. It seems a bit loose now, but don't worry, it won't get lost under the carpet. It seems to be restrained in some way to stay in place. I am only not sure if it would not cause some noise, will report about that later.

When above done, the floor is absolutely flat and another type of mats can be installed.

According to my dealer, the accessory mats (the ones with the Bravo logo) have their own locking mechanism, so once you deal with the existing locking system (as per explained above), you should have no problem putting these mats.

Hope this helps.