The electric motor itself makes a little bit of a whirr. Also as of 2020 NHTSA requires hybrid and electric vehicles to have an audible pedestrian warning below ~30mph.
Hybrid function (switching between ICE and electric) works at pretty much all speeds up to about 80mph. There's a lot of factors in play but throttle/horsepower demand and battery state of charge are the two primary ones.
Hybrid function (switching between ICE and electric) works at pretty much all speeds up to about 80mph. There's a lot of factors in play but throttle/horsepower demand and battery state of charge are the two primary ones.
