"Take Her Down No 1"

Soon your new car will be a close relative of the submarine. And probably sooner than you think.
"Look at our cars. They're made of big heavy things that shake, bounce, and sway; they're propelled by pistons, shafts, gears, and belts; controlled by shafts, gears, valves, and hydraulic fluids. All the really important parts go click-click, bang-bang. The car is a 100 kW (peak) machine. The stuff that hums instead of clanking, the electric load, peaks at 2 kW."
Already things are stating to happen ......

"To meet this steadily rising demand for electric power, car manufacturers are making the transition to a 42-volt grid to replace the existing 14-volt grid. Lower-voltage wires just can't convey large amounts of power efficiently. A new 42-volt industry standard emerged recently, and half of global automobile production will be on a 42-volt platform within the next decade or so."

From Mechanical Engineering Well worth a read.
Rest Area 300m