Exercise - Focal lengths and different viewpoints

Using 2 set of focal lengths, 18mm and 100mm with a car (again) as my object
standing far away and making a tightly framed composition:
100mm

As I walked closer to the car and made a tightly framed composition:
18mm

These two photos give different feeling.
a) The top one, with 100mm focal length, the car looks quite normal in the scene. It does not emphasise any part of the car. It only gives the impression of the over all car being in the scene, nothing special.
b) The bottome one, with 18mm focal length, the car looks stretched out across the frame. It emphasises the strong presence of the car bonnet and it also gives the impression that the car is about to jump out the frame!