What happens when you get into a car accident and you have no car insurance but the other car is at fault?

The other car will have to pay for the damages using their own savings to take you in a hospital and for the repairs on your car since you don't have a car insurance yet.

Added: If you live in a state that requires you to have insurance, and you don't, you will undoubtedly be give a ticket for being an un-insured motorist.