Four more Delphi plants have won Shingo Prizes in 2006. This is on top of two in 2005, eight in 2004, four in 2003, five in 2002, two in 2000, and one in 1999. And Delphi is bankrupt. Yes, the Shingo Prize is at the plant level, but this is nuts. We’ve blogged on Delphi and the Shingo Prize many times before, so this time I’ll just sadly pound my head against the wall and be invigorated by true excellence at Masco, Sherrill Manufacturing, American Coil Springs, DeCardy Diecasting, and Grand Haven Stamped Products.