I was driving into my very short driveway tonight. I have a class B (van sized RV) parked in front. As I drove in and started to brake, the car accelerated rapidly. I tried pumping the brake, but the car accelerated and hit the back of the RV, causing significant damage to both vehicles. The air bags did not deploy, but the seat belt became very tight. I took the car into a dealer in Utah 4 weeks previously and they did recall work on the brakes and fuel line. The problem with the brakes was excess air in the brake lines that they had to bleed, from what I read about the recall. I don't know if this is still the problem, but something caused the brakes to fail. I am now unsure if this car will be safe to drive, even after repairs. I live in a very remote area where the nearest community of any size is 2 hours in either north or south directions. There is open livestock grazing (horses and cattle) on the two lane highway and without the ability to brake as needed, this could be deadly for me, my passengers and the livestock. Please look into this. I have NEVER had this happen!