Two-stage turbocharged internal combustion engine

An internal combustion engine, comprising:

• an engine block extending along a longitudinal direction and having a first end side and a second end side opposite to the first end side in the longitudinal direction;
• and
• a two-stage turbocharger system comprising:
• a low-pressure stage turbocharger mounted at the first end side of the engine block and comprising a first turbine and a first compressor configured for pre-compressing charge air during operation of the internal combustion engine,
• a high-pressure stage turbocharger mounted at the first end side of the engine block and comprising a second turbine and a second compressor configured for compressing the pre-compressed charge air during operation of the internal combustion engine,
• a first charge air cooler fluidly connected to an outlet of the first compressor and an inlet of the second compressor, and
• a second charge air cooler fluidly connected to an outlet of the second compressor, wherein the first charge air cooler and the second charge air cooler are mounted at the first end side of the engine block so as to overlap at least partially in a plan view of the internal combustion engine, and wherein the first charge air cooler and the second charge air cooler each include a box-shaped housing with a long side extending in a transverse direction perpendicular to the longitudinal direction.