In reply to BillySoh:
I had read in China their car manufacturing companies are scrambling to come up with more and more fuel efficient cars since Japan wouldn't share their technology. I think America might start to be behind on this because China, India and some developing countries have much greater needs to cut their dependency on foreign oil and resources, this is a very dangerous area to start fighting globally for natural resources, therefore these countries have to get faster on engineering ways for recyclable and renewable energy.