Abstract
As pure risks this paper shows first a climate change and a jump in crude oil price, and an ultra-lightening weight of mass production automobiles by using carbon fiber reinforced plastics (CFRP) is shown as an effective measure against these risks. Then, speculative risks including losses and benefit due to the ultra-lightening, such as a greater impact deceleration at collision, lower fuel expenses, etc., are shown and necessary researches for CFRP are discussed. Finally, techniques concerning low cost and speedy manufacturing, 3R (reduce, reuse and recycle), performance evaluation and numerical simulation are shown to be established.
