Is it possible to contract a permanent brain injury from running into a car with a bad driver?

Yes. Our brain is the most delicate of our organs. It has limited ability to heal from an injury. One of the most common ways to injure your brain is during a car accident. If you have concerns, you should be evaluated by your doctor right away.
Yes. You can injure your brain from a significant impact with a car, even with a good driver. Post traumatic brain injury can have many varied outcomes depending on many factors, too numerous to mention here.