Looking through the window of a hobby shop, a giant four foot 'G' gauge two unit diesel will catch the eye. Our total length is fifteen foot! Problem! The answer is in the word "foreshorten" ... "reduce the length of a line in order to give the proper impression to the eye by means of perspective." Use short motive power, short cars, etc. It can be just as much fun to move short cars as a longer, proper length car.
The same car, a section cut out of one. Visually the short car looks complete
9" vs 15" /two trucks
(sets of wheels).
Shorter cars, 5-6" look 'normal' with four wheels.
