By the time the car came to a rest on its roof in the early hours of Sunday morning, the luxury vehicle had flipped five times, killing its driver and ejecting one of its passengers.
Arlington police were still investigating why the 21-year-old man behind the wheel of the 2005 BMW M5 was driving 90 miles per hour across the Key Bridge, ultimately losing control of the car and sending it flipping along the area of Lee Highway and Fort Myer Drive.
Police spokesman Dustin Sternbeck said the incident happened at about 4:58 a.m. The car was carrying two other men in their early 20s. All three were from Leesburg.
The car was heading from Georgetown to Arlington via the bridge when it hit a bend in the road, Mr. Sternbeck said, causing the driver to lose control. The vehicle flipped four or five times before coming to a stop upside down.
One of the passengers was ejected from the car, and he was found unconscious by emergency responders. The other passenger was able to extricate himself from the car but suffered critical injuries, Mr. Sternbeck said.
Both passengers were taken to a hospital, but an update on their conditions was not immediately available.
Mr. Sternbeck said the crash diverted traffic for nearly six hours.