Initial reponse from Mexico City: "Benotto is still the largest bicycle seller in México and perhaps in all latinamerica.The mountainbike team is one of the most popular and powerfull in the national series. Don Jacinto Benotto died some years ago but his family still owns a litlle part of the company, now Don Jesus Fares is the President and almost owner...."
I've emailed Sr. Fares to see what more light he can shed on Benotto history.
Benotto is still selling road bikes, only one model (your current aluminum with carbon seat stays and fork style) http://www.benotto.com.mx/Benotto_Team/benotto_team.html
Long Valley, NJ