The Schyster Deviant from the Arena War update.
Vehicles.ide:
deviant, deviant, car, SABREGT, SABREGT, VEH@STD, NULL, 100, 999, 0.2240, 0.2240, 0, 5, 1.0 ,0, livery

Use https://gtaforums.com/topic/955449-iv-zolikapatch/ to unlock the 4 livery limit