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BMW i8 engine combines a 1.5L three-cylinder turbocharged petrol engine with an electric motor, producing a combined 357 bhp. This plug-in hybrid powertrain is genuinely groundbreaking — lightweight, efficient, and deceptively quick when both power sources work together. When sourcing a replacement unit, ensure the petrol engine and hybrid control module are purchased together for compatibility. Inspect the turbocharger and intercooler carefully, as heat soak is common in the i8's tightly packaged engine bay. Battery health certification from the seller is essential. With proper installation and a fresh software calibration, the i8 powertrain delivers a futuristic driving experience at a fraction of its original cost.
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