On April 1, 2023 | was leaving the garage of the Marriott Residence inn in Arlington, VA, with two passengers. Up the ramp of level two to level one, slight turn and suddenly car accelerated so fast, sounded like an airplane. Like the accelerator had a mind of its own. Brakes and steering wheel did not respond. We traveled about 20 feet in about 10 seconds at rapid speed head on into a wall. My car was totaled, airbags deployed, a parked car next to me was totaled. EMTs and police responded immediately. We were immediately taken by 2 ambulances to Virginia County Hospital. Injuries: Driver: partial amputation of right middle finger 16 stitches, deep scrape on left Front passenger: severe bruising from seat belt, cut to finger Rear passenger: 4 fractured ribs and severe bruising from seat belt, lower back injury. All treated and released from hospital ER late afternoon, I was not cited. I believe there was some kind of mechanical malfunction.