I rear-ended a car after they came to a complete stop at a green light on a road with a 50mph speed limit. I attempted to stop but in the rain my car hydroplaned, and I hit them. Upon impact my seatbelt did not lock up and my airbags didn't deploy despite the fact that I was going at least 20mph. I ended up hitting the steering wheel pretty hard and still have pain, spasms, and soreness.