So this is the general language of Hertz regarding under 25 drivers, " What cars can I rent when under 25? Hertz renters under the age of 25 may rent any car except those from the Dream Cars, Prestige, and Adrenaline collections, and certain specialty vehicles."
Here, shorturl.at/cmT01 it states clearly all vehicle classes that are available for drivers 20 and up for a daily underage fee, or in my case without one since I used codes that removed that fee.
(the system would not let me post it as a link, just copy and paste)