The BMW 330e badge marks the plug-in hybrid version of the 3 Series, first sold in the F30 generation from 2016 and carried into the later G20 model. It pairs a petrol engine with an electric motor, which is why recordings of it sound smoother and quieter at low speed than a conventional petrol 3 Series. Clips like this circulate among car reviewers, editors and owners who want authentic hybrid driving audio for comparisons, POV drives and social posts about switching between electric and petrol power.