I work for Avis Budget. One small error:
the dodge charger and challenger are usually specialty vehicles (XS) but are sometimes E depending on how old it is/what type.
Mustangs are (mostly) XB, as well as other smaller specialty vehicles,
Priuses are XC,
Small trucks such as a Toyota Tacoma or Nissan Rogue are XD,
Large trucks such as a Ford F-150 are XW.