Does a car starter motor use a starting resistor to limit the high starting current? What is the type of connection between field coil and armature? Series, parallel or mixed?
Having stripped and rebuilt many starter motors from those on lawn mowers to those for 10 litre diesels - there were no extra resistors fitted except, of course, the resistance of the field coils or armature windings themselves. Not ignoring the resistance of the cables and internal resistance of the battery though.
They are series or parallel connected depending on application. Designed for maximum power at low speed to get the stationary engine rotating.