There's no way the average taxi driver can spend $8500 usd which is probably between 1 - 2x what they earn in a year in Mazatlan on a new electric vehicle which lacks infrastructure there. The electric vehicle "taxi" drivers in Mexico tend to be the upscale uber drivers. If you chat with taxi drivers in Mexico (I did for a bit while brainstorming startup ideas) they're squeezed between many rocks-and-a-hard-place and I don't think a new electric vehicle that underperforms Chinese ones in most ways will capture any of that market.
Depending on monthly financing, an $8500 electric rickshaw might work. I guess the big question is how much is monthly financing for a used Nissan Versa?
If I can purchase a used Nissan Versa for around $9000 and an Olina Uno for around $8500 and loan terms are roughly comparable, the used Nissan Versa would probably be the smarter purchase.
If financing for the Olina Uno cannot compete with financing for a used sedan, then I would assume that mototaxi owners would probably upgrade to a used sedan instead.
Very very few taxi drivers in Mexico are financing a $9000 sedan. They're mostly driving some taxi service's car and paying the service for the car or they're paying cash for a used and much cheaper car. $9000 is a lot of money for a taxi driver in Mexico.