The bomber has a removable fur collar with a regular leather collar underneath. It clips on with studs underneath the outside of the collar and has buttons on the inside at the neck of the jacket. As far as I know the moto doesn't come with a fur collar.
Doctor, I'm in the same boat as you with deciding on horsehide jacket in brisbane. Not sure whether it will be noticeably warmer than the other leathers. I have a brown lamb bomber and I know it will get a lot of wear.