The BMW i4 is a battery electric Gran Coupé launched by BMW in 2022 as part of its i range of electric vehicles. Because electric motors run far more quietly than combustion engines, recordings of models like the i4 focus on the motor whine and the synthetic low speed warning tone fitted for pedestrian safety. Short clips of that sound have spread through car forums and video platforms, where creators reuse them whenever footage needs believable electric vehicle audio instead of a traditional engine note.