I asked about getting a drivers licence on a local message board and later I got a PM from a friend that had not completed the process some time before. He knew where to go and wanted to do it again so we went together. Mine would have probably taken 30 minutes but he lacked proof of residence so we tried the municipio office for a Constancia. For a Constancia in Cihuatlan they now need birth certificate and fotos and he had no birth certificate.
Anyway the finance office is on the side street a block towards the plaza from Coppel, uphill. $495 pesos. Take that receipt, visa, passport and proof of residence (Constancia or CFE Bill in your name) ... with copies of the last three to the Validad office. You also need to know your blood type and have a name and number of someone to contact in case of emergency. Validad is about a block towards the plaza from Farmacia Guadalajara.
First a simple eye test on the computer and then a 20 question quiz. The terminology was a little strange but with a little help from the overseeing officer I got 95%. No driving test was required. I suggest knowing quite a bit of Spanish or take an interpreter. I think they are more receptive to people who can hold a conversation but not necessarily get the test terminology. I now have a very professional credit card style licence. Bike licences are different
Finance department where you pay
Validad where you get the licence