hello! can you tell me please what are the current challenges in automotive industry? please be as specific as possible, for example, it won't help to say to make engines more efficient, but it will help to say to find a way to harvest the kinetic energy of the exhaust gases also, elaborating on the problem will help, ie. what has been done so far and what is the problem exactly, we need a stronger material? a new electronic circuit? a new mechanical mechanism? thanks!