One problem related to car accelerates on its own has been reported for the 2014 BMW X3. The most recently reported issues are listed below.
I was driving my car about 30 mph and pulling up to a red light and pressed the brakes. The car suddenly accelerated on its own and I stepped on the brake. It started lurching forward, accelerating. I had to kill the engine. This has happened 3 times and it's terrifying.