A polyolefin elastomer offering high flow and excellent rubber loading efficiency as superior impact modifier in thermoplastic polyolefin (TPO) compounds. Its improved toughening capability compared to other commercially available polyolefin elastomers allows for greater ease in optimizing elastomer levels to meet impact requirements for global automotive specifications. TPO formulations containing this combine very good processing behavior with an excellent stiffness/toughness balance for automotive parts, such as bumper fascia. The design of this enables shorter injection molding cycle time for the TPO compound. Its design characteristics contribute to morphology control and improved temperature resistance for final parts.