I started this thread because there was an uproar. When ambiguities like this arise the best info comes from actual experience. If someone would have reported yes/no it would have helped.
This time I asked at the puesto de control south of Ensenada. They are checking for stolen cars and cars with no ANAPROMEX Mexican license plates or legal registration. Cars with no ANAPROMEX Mexican license for importation are confiscated. They asked me for my non-Mexican registration. One glance and I was on my way. This was northbound last Friday.
