Smaller is almost always better. Why? Simple reasons:

1. The smaller something is, the more frequently you will use it. Also, the smaller something is, the more ‘usable’ it is.
2. For example, the human hand is a fixed size. A smaller smartphone is ALWAYS better.
3. Smaller cars are better. Easier to park, easier to turn, easier to parallel park, easier to do U-Turns. Also, you are more likely to find a parking spot for a smaller car.