* with a quota of 138 meters per hour, overage charges may apply
The old plans were $0.033/request for Pro, $0.026/request for Pro+ and $0.04/request for pay-as-you-go. That discount is now gone. They even still advertise "5x the number of requests" for Pro+ over Pro.
However I do also pay for milage (KM), and extending the rental period does often* NOT extend the milage range. Eg 1 month=1000 KM, 2 months=1000 KM, so you need to split the rental periods yourself and do all that hassle, or pay extra.
(*May of course vary depending on the rental company)
This being in Brazil.