The contact owns a 2015 BMW 528i. The contact stated that while driving up a ramp at 5 MPH, the transmission unintendedly shifted into Neutral (N) and the engine experienced a total loss of motive power. No warning lights illuminated. The vehicle rolled backward, struck the front bumper of another vehicle, and stopped upon impact. The vehicle sustained rear bumper damage. The airbags did not deploy. A police report was not filed, and no injuries or property damage were reported. The vehicle was not towed. The dealer was notified of the failure; however, the vehicle was not diagnosed due to diagnostic costs. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 110,000.