Imagine you have a toy car that looks really old and rusty but still cool. That's what a rat rod is, but for adults and real cars. A rat rod is a car that is put together from different parts of old cars, and it looks all rusty and rough on the outside, but it's still functional and runs well.
People who like rat rods like them because they look unique, and they're not too concerned about a car being shiny and perfect, as long as it starts up and goes. It's like having a favorite shirt with holes and stains that you still love to wear.
Rat rods are often made to look like they are from a different era, like the 1920s or the 1950s. They may have big engines sticking out of the hood, extra lights, and cool decorations like skulls or dice. Some rat rods have big wheels that stick out of the sides of the car or have no roof.
When you see a rat rod, it looks like a car that's been brought back to life, like a zombie car. It's not pretty or perfect, but it's still cool and fun to drive. So, that's a rat rod in a nutshell - an old but new-looking car that's put together from different parts, looks rough on the outside, but still drives like a champ.