Different makes and different countries
One car is from USA
Not the same bodywork builder, or engine\chassis\whatsoever common builder
Not the same builder or engine or designer or nationality or year of construction
One is a very famous car
The connection is not in the engine, or in the body , or in the technical specs of this car
First one is the British Adams V8 tourer from 1906 and I suspect the 2nd is the American Hewitt
One car is correct, the other one is not, and it's an easy one: look at the shape of the radiator...
the connection is not in the cars...One car is already identified, the other is a well known one...I'll post a definitive clue when both cars will be found...