I referred to the swapping of cars to a far inferior model than you paid for.
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)
I referred to the swapping of cars to a far inferior model than you paid for.
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.