Authorities say the 20-year-old victim was discovered on First Avenue and East 96th Street on the Upper East Side around 7:45 p.m. with a gunshot wound to his right leg while sitting in the vehicle.
He was taken to Weill Cornell in stable condition.
Shortly after, police say they recovered a firearm on East 84th Street and First Avenue.
Police are trying to figure out if the weapon was discharged by a suspect or if the gunshot wound was self-inflicted.
They are also looking to determine if the weapon that was recovered is connected to the shooting victim.
Ex-Brit turned Manhattan resident since 2008.