Source is this list: https://en.wikipedia.org/wiki/List_of_World_War_II_military_vehicles_of_Germany

Excerpt:

• Panzerkampfwagen I (full title for the Panzer I)

• Panzerkampfwagen I nA (interleaved suspension version of the Panzer I, the Ausf C)

• Panzerkampfwagen I nA Verstärkt (reinforced version of the Panzer I, the Ausf F)

• Panzerkampfwagen I ohne Aufbau (Panzer I without superstructure)

• Panzerkampfwagen II (full title for the Panzer II)

• Panzerkampfwagen II Flamm (flamethrower version of the Panzer II)

• Panzerkampfwagen II mit Schwimmkörper (Panzer II with amphibious floats)

• Panzerkampfwagen II nA (interleaved suspension version of the Panzer II, the Ausf G)

• Panzerkampfwagen II nA Verstärkt (reinforced version of the Panzer II, the Ausf J)

• Panzerkampfwagen II ohne Aufbau (Panzer II without superstructure)

• Panzerkampfwagen III (full title for the Panzer III)

• Panzerkampfwagen III (Fl) (flamethrower version of the Panzer III)

• Panzerkampfwagen IV (full title for the Panzer IV)

• Panzerkampfwagen V (full title for the Panther tank)

• Panzerkampfwagen VI (full title for the VK30.01, VK36.01, Tiger I and Tiger II tanks)

• Panzerkampfwagen VII (full title for the Panzer VII)

• Panzerkampfwagen VIII (full name for the Panzer VIII Maus)