Size has a big effect on a car's price, space, economy and styling. Large cars are roomier, better-styled and more expensive. Smaller cars are easier to park, easier on the wallet and less concerned with creature comforts.
Larger cars tend to have more space for people and belongings. Small cars can have comfortable accommodations, but for fewer people.
Since big cars take more raw materials to make, they're more expensive. Automakers' least expensive models are their smallest, with fewer frills.
Auto designers have more difficulty styling small cars, so they tend to look more utilitarian. Large cars have more sheet metal and more opportunities for shaping and decoration.
Large and small cars have an equal chance for parking in a large, marked lot. For street parking, the small car's the winner.
Small cars have smaller, thriftier engines. They also have less weight to move, so fuel economy is better.
In a collision between a large car and a small one, the large car impacts the small car more than the other way around. Large cars also have more sheet metal to protect occupants.