A 39-year-old motorist was killed in a crash on a Bronx highway early Saturday in which the hit-and-run driver responsible escaped on foot, police said.
The victim’s black Ford Crown Victoria with New Jersey license plates was heading south on the Major Deegan Expressway near West Fordham Road in University Heights about 3:45 a.m. when a black Mercedes-Benz rear-ended him, cops said.
Both cars veered out of control and crashed on the highway, cops said…