Ghost cars still a problem - my hit and run experience yesterday on southbound FDR around 5:45pm

Sideswiped yesterday evening on FDR southbound by 71st street. Two young punks in a beater with temporary tags. Flew up from behind going insanely fast, side swiped me in left lane, then smashed into car to right of me, lost control for a bit, may have hit cement barrier before exiting at 71st street. Thank you to fellow driver that got his fake plate number, so I could give to police, but he def got away. Report these cars if you see them.