A composition comprising: (a)a polyolefin comprising a combination of polypropylene homopolymer and propylene-ethylene block copolymer, wherein the polyolefin is present in an amount ranging from about 55 wt.% to about 72 wt.%, based on a total weight of the composition; (b)a first and a second elastomer that are not the same, wherein the combined weight percent of the first elastomer and the second elastomer ranges from about 18 wt.% to about 33 wt.%, based on the total weight of the composition wherein: (i) the first elastomer comprises an ethylene-based copolymer having a density from about 0.86 g/cm 3 to about 0.88 g/cm 3, wherein the first elastomer is present in an amount ranging from about 5 wt.% to about 15 wt.%, based on the total weight of the composition; and (ii) the second elastomer comprises an ethylene-octene copolymer having a density from about 0.85 g/cm 3 to about 0.87 g/cm 3 and a glass transition temperature below -60°C, wherein the second elastomer is present in an amount ranging from about 10 wt. % to about 22 wt. %, based on the total weight of the composition; (c)a filler present in an amount ranging from about 6 wt.% to about 12 wt.%, based on the total weight of the composition; and (d)an additive package present in an amount ranging from about 0.5 wt.% to about 5 wt.%, based on the total weight of the composition; wherein the composition has a density ranging from about 0.92 to about 0.99 g/cm 3, an after-bake-mold-shrinkage (1 hours, 121 °C) ranging from about 0.7 percent to about 0.9 percent, a coefficient of linear thermal expansion ranging from about 5 to about 8 (10E-5 mm/mm/°C), and a flexural modulus between about 1,400 MPa and about 2,500 MPa; wherein the after-bake-mold-shrinkage has been measured by using a modified ISO-294-4 method; the coefficient of linear thermal expansion has been measured by thermal mechanical analysis of annealed test specimens; the flexural modulus has been measured according to ISO 178. (a)a polyolefin comprising a combination of polypropylene homopolymer and propylene-ethylene block copolymer, wherein the polyolefin is present in an amount ranging from about 55 wt.% to about 72 wt.%, based on a total weight of the composition; (b)a first and a second elastomer that are not the same, wherein the combined weight percent of the first elastomer and the second elastomer ranges from about 18 wt.% to about 33 wt.%, based on the total weight of the composition wherein: (i) the first elastomer comprises an ethylene-based copolymer having a density from about 0.86 g/cm 3 to about 0.88 g/cm 3, wherein the first elastomer is present in an amount ranging from about 5 wt.% to about 15 wt.%, based on the total weight of the composition; and (ii) the second elastomer comprises an ethylene-octene copolymer having a density from about 0.85 g/cm 3 to about 0.87 g/cm 3 and a glass transition temperature below -60°C, wherein the second elastomer is present in an amount ranging from about 10 wt. % to about 22 wt. %, based on the total weight of the composition; (c)a filler present in an amount ranging from about 6 wt.% to about 12 wt.%, based on the total weight of the composition; and (d)an additive package present in an amount ranging from about 0.5 wt.% to about 5 wt.%, based on the total weight of the composition; wherein the composition has a density ranging from about 0.92 to about 0.99 g/cm 3, an after-bake-mold-shrinkage (1 hours, 121 °C) ranging from about 0.7 percent to about 0.9 percent, a coefficient of linear thermal expansion ranging from about 5 to about 8 (10E-5 mm/mm/°C), and a flexural modulus between about 1,400 MPa and about 2,500 MPa; wherein the after-bake-mold-shrinkage has been measured by using a modified ISO-294-4 method; the coefficient of linear thermal expansion has been measured by thermal mechanical analysis of annealed test specimens; the flexural modulus has been measured according to ISO 178.