I think most Amiga’s had 32-bit registers, but a 16-bit bus.
(So to everything around the CPU they were 16-bit even though internally they could do 32-bit computations)
All Amigas have 32-bit registers, some of them have a 16-bit data bus.
All Amigas have 32-bit registers, some of them have a 16-bit data bus.