Driving from Belize to Texas - Shortest Route?

I mention taking the new route toward Ciudad Victoria instead of going through Soto La Marina to avoid construction on MX180. Is that what you mean. That route is well signed and good freeway type roads but a little longer. The signs say Matamoras right after Tampico.
Many people say that this route is not safe, but it is loaded with first class buses and traffic and I just stay with the traffic.