What cars are 100 inches or less in length?

There aren't many cars currently produced that are 100 inches or less in length. That's incredibly short – smaller than most Smart Cars. Cars of that size are essentially microcars, and they are quite rare in the modern automotive market.

You'd be much more likely to find such small dimensions in:

* Very old cars: Some extremely antique vehicles might fall into this category.

* Custom-built vehicles: Someone might build a custom car this small, though it would likely be more of a kit car or novelty item than a production model.

* Electric or specialized vehicles: While unlikely to be street-legal in many places, some extremely niche electric or purpose-built vehicles *might* approach this length.

To find something specific, you'd need to search for microcars or very old vehicles and check their specifications. Keep in mind that even older microcars often exceeded 100 inches.