With an ICE, when you step on the gas, the throttle opens and allows more fuel into the cylinders, this increases the power of the explosions in trhe cylinder, resulting in the engine turning over more quickly. This increased rate of revolutions is then mechanically transferred to the wheels, via a gearbox.
Every step of this process takes a certain amount of time to happen and that adds up to a noticable delay between your foot pressing the pedal and the wheels increasing their speed.
In an electric vehicle, there’s no delay. The instant your foot starts moving down, the wheels spin faster.
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