While reversing out of a parking space, my 2021 Volkswagen ID.4 automatically braked and stopped abruptly. Immediately afterward, the vehicle accelerated forward unexpectedly. I pressed the brake pedal, but the vehicle did not respond and crashed into a retaining wall. A forensic analysis of the vehicle’s event data showed the accelerator was at 100% and the vehicle was traveling approximately 22 mph at impact. The airbags deployed, the vehicle was totaled, and both occupants sustained injuries. I believe the vehicle experienced a serious malfunction involving the braking and acceleration systems.