For those making noise (w/o knowing much about manufacturing and supply chains) and claiming Toyota mismanagement after disaster in Japan, the below might prove insightful along with the updates at Notices | Renesas Electronics America, esp. right after the earthquake. Japanese Parts Paralysis: Lack Of Chips For Cars Can Cost $76 Billion | The Truth About Cars I've actually never visited TATC much other than during the CTS vs. Denso pedal analysis but it seems they have some good stuff and I'll be visiting more often now. The above also links to http://www.autonews.com/apps/pbcs.dll/article?AID=/20110408/OEM10/110409902/1329 which also has some good stuff.
Related to the above. Japanese Parts Paralysis Reaches Toyota Europe. Strategic Chipmaker To Re-Open In June | The Truth About Cars Japanese Parts Paralysis: Renesas Rations Chips For Toyota, Nissan And Honda | The Truth About Cars