We manufacture for third party brands and the identity of our customers is strictly confidential, so I cannot give product names.
As Bunky says, there are lots of other waxes out there. Montan is another good naturally occurring wax, then you would have the likes of beeswax and any number of others. To my knowledge, carnauba probably is the best of these naturally occurring waxes, for automotive application. That said, for some preferences, I can imagine that combinations with montan could be considered superior. But there are also a load of synthetic waxes out there, which do not occur naturally. These can have very carefully tuned characteristics and there is a lot of scope for tweaking. There are then even more advanced types of waxes out there which would not see so much press (notably because they would cost you 10x as much).
Don't get me wrong, I appreciate that carnauba is probably the best single natural wax out there, but I would consider it to be a compromise to use it as the only wax, not something worth shouting about.
