Two young women died when they were thrown from a car that crashed on the Belt Parkway in Brooklyn early Sunday. The car’s driver, a 29-year-old man, was charged with vehicular manslaughter, driving while impaired by alcohol and other counts, the police said. The car, a 1996 Infiniti, hit a guardrail while traveling east, veered across several lanes of eastbound traffic and hit other cars, the police said. It then swerved back across all the eastbound lanes and struck a median. The two women, who were in the back of the Infiniti, were ejected. The crash occurred on the parkway near 80th Street at about 3:30 a.m. Emergency medical personnel pronounced the women — who were 24 and 33 years old — dead at the scene a few minutes later. Their names had not been released by Sunday evening.