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