(Or perhaps it should have been an hybrid with both a 16-bit CPU and a Z80 to keep compatibility, why not?)
On the other hand, Amstrad was still producing cheap affordable 16 -bit PC compatibles with pseudo EGA capacity (16 colours), so in this way it was actually a 16 -bit producer.
See [[Amstrad PC]] for more information on Amstrad's ventures into the 16bit world.