Indeed MrSalmon

Very true.
But cars are too slick. The designers have spent 100 years disguising the internals and making them like white goods.

The noise issue of cars is almost irrelevent. Apart from the more cheaper diesel models, modern engines are so quite at urban speeds that they are un-audible over the din that typically HUGE tyres make on the road.
However elec cars focus on economy and efficiency so I suppose will have smaller tyres. Oh dear, they will to sneak up on cyclists/pedestrians with their stealthy approach! 🙂

how long befre a chav fits one of those fake dump valves to an electric car?