A high-strength automobile part, comprising: a hot press-formed steel sheet having an intermetallic compound layer formed on a surface of the steel sheet, the intermetallic compound layer being formed of Al-Fe intermetallic compound having a thickness of 10 μm or more and 50 μm or less, the intermetallic compound layer including a diffusion layer positioned in closest proximity to the steel sheet, the diffusion layer having a thickness of 10 μm or less; a surface coating layer provided on a surface of the intermetallic compound layer, the surface coating layer including a coating containing ZnO and a zinc phosphate coating and having a surface roughness of 3 μm or more and 20 μm or less as a maximum profile height Rt in accordance with JIS B0601; and an electrodeposition paint film provided on a surface of the surface coating layer and having a thickness of 6 μm or more and less than 15 μm; wherein the hot press-formed steel sheet has a mechanical strength of about 1500 MPa or more, and the hot press-formed steel sheet and the intermetallic compound layer are formed using an Al plated steel sheet as a raw material, the Al plated steel sheet having an Al plating layer formed on a surface of the steel sheet serving as a base metal, wherein an amount of the Al plating layer is 30 g/m 2 or more and 110 g/m 2 or less for one surface, wherein the steel sheet serving as the base metal contains, in mass%, C: 0.1 to 0.4%, Si: 0.01 to 0.6%, Mn: 0.5 to 3%, Ti: 0.01 to 0.1%, B: 0.0001 to 0.1%, and optionally one or more selected from the group consisting of Cr: 0.001 to 0.5%, Al: 0.01 to 0.1%, N: 0.001 to 0.02%, P: 0.001 to 0.05% and S: 0.001 to 0.05%, and the balance: Fe and impurities; and the Al plating layer contains, in mass%, Si: 3 to 15%, Fe: 2 to 4%, and optionally containing one or more selected from the group consisting of Mg: 0.01 to 1%, Ca: 0.01 to 1%, Sr: 0.01 to 1% and Li: 0.01 to 1%, and the balance: Al and impurities; and has an average primary crystal diameter of 4 μm or more and 40 μm or less. a hot press-formed steel sheet having an intermetallic compound layer formed on a surface of the steel sheet, the intermetallic compound layer being formed of Al-Fe intermetallic compound having a thickness of 10 μm or more and 50 μm or less, the intermetallic compound layer including a diffusion layer positioned in closest proximity to the steel sheet, the diffusion layer having a thickness of 10 μm or less; a surface coating layer provided on a surface of the intermetallic compound layer, the surface coating layer including a coating containing ZnO and a zinc phosphate coating and having a surface roughness of 3 μm or more and 20 μm or less as a maximum profile height Rt in accordance with JIS B0601; and an electrodeposition paint film provided on a surface of the surface coating layer and having a thickness of 6 μm or more and less than 15 μm; wherein the hot press-formed steel sheet has a mechanical strength of about 1500 MPa or more, and the hot press-formed steel sheet and the intermetallic compound layer are formed using an Al plated steel sheet as a raw material, the Al plated steel sheet having an Al plating layer formed on a surface of the steel sheet serving as a base metal, wherein an amount of the Al plating layer is 30 g/m 2 or more and 110 g/m 2 or less for one surface, wherein the steel sheet serving as the base metal contains, in mass%, C: 0.1 to 0.4%, Si: 0.01 to 0.6%, Mn: 0.5 to 3%, Ti: 0.01 to 0.1%, B: 0.0001 to 0.1%, and optionally one or more selected from the group consisting of Cr: 0.001 to 0.5%, Al: 0.01 to 0.1%, N: 0.001 to 0.02%, P: 0.001 to 0.05% and S: 0.001 to 0.05%, and the balance: Fe and impurities; and C: 0.1 to 0.4%, Si: 0.01 to 0.6%, Mn: 0.5 to 3%, Ti: 0.01 to 0.1%, B: 0.0001 to 0.1%, and optionally one or more selected from the group consisting of Cr: 0.001 to 0.5%, Al: 0.01 to 0.1%, N: 0.001 to 0.02%, P: 0.001 to 0.05% and S: 0.001 to 0.05%, and the balance: Fe and impurities; and the Al plating layer contains, in mass%, Si: 3 to 15%, Fe: 2 to 4%, and optionally containing one or more selected from the group consisting of Mg: 0.01 to 1%, Ca: 0.01 to 1%, Sr: 0.01 to 1% and Li: 0.01 to 1%, and the balance: Al and impurities; and has an average primary crystal diameter of 4 μm or more and 40 μm or less. Si: 3 to 15%, Fe: 2 to 4%, and optionally containing one or more selected from the group consisting of Mg: 0.01 to 1%, Ca: 0.01 to 1%, Sr: 0.01 to 1% and Li: 0.01 to 1%, and the balance: Al and impurities; and