A Long Island was killed when his car split in half, catapulting him from the wreck after he veered off the Northern State Parkway on Monday, cops said.

Salvatore Sparacino IV, 29, was apparently speeding and driving erratically when he crashed his 2010 Volkswagen EOS near the New Highway overpass in Smithtown at about 8:30 p.m. on Monday, authorities said.

When state troopers arrived at the scene, they found Sparacino ejected from his car — which was ripped in two — near exit 46 in his hometown, police detailed.

No other vehicles or people were involved in the crash, police said.