Obviously the safest way from Galeão Airport in Rio de Janeiro to your Hotel in downtown (say) Copacabana should be a licensed taxi.
I read about the difference between yellow cabs and fixed-rate radio cabs in the Tripadvisor article.
I checked fares online and was dumbfounded to find, that for the token example given above, Numbeo estimates a yellow cab arround R$50 (€15), whereas radio cabs like Rio Airport Transfer will ask €60.
Is Numbeo wrong or why is there such a huge price range?