I don't know the laws in your country, but here we have to use the rear facing that tends to only fit with a base. The 205 rear seats are pretty much the same as the 185 seats. I am not sure if the buckets are as deep. For my seats I had to come up with something to fit the bottom of the seats so that the baby seat is easier to level and lock down. If the 205 rear seat belt is anything like the 185 belt, it is awful for the newer car seats. The older forward facing ones fit better due to locking position. I had considered installing a latch system from a new vehicle but they tend to be built into the seats structure. I included a link that lists a retro fit system that will allow you to use the newer car seat latch system in your 205. I purchased one that is like a seat belt that comes around the back of the seat and latches to the baby seat. Read the answer in the link:
https://answers.yahoo.com/question/inde ... 112AAer1M7Also note, The new baby seats are quite large and as your baby grows it is harder for them to have room. You will have to mount behind the passenger seat, and you will have to also possibly have the passenger seat further up.