Notably, Audi takes it one step further by offering a trio of switchable drive modes for normal use, efficiency and sportiness.

ENGADGET: Audi A3 e-tron hands-on (video) Hands-on

"I believe that if a man has a normal and happy family, his working efficiency is always good, " he says.

CNN: TYCOONS

It will be the first on the market that reaches that level of efficiency and functions across a normal range of temperatures and is capable of consistently producing the same amount of warm white colored light as comparable fluorescent tubes.

NPR: Goodbye Fluorescent Bulb? Philips Says Yes.