General Motors explained the use of C-Flex technology at its Lansing Grand River Assembly plant Friday, Dec. 13, 2002. C-Flex and other technologies are allowing GM to reduce assembly size by 50,000 to 150,000 square feet and will allow GM to save up to $100 million each time it renovates a plant body shop. GM's C-Flex technology allows for various sheet metal parts to be welded from the same set of tools and robots. The C-Flex units are the cylindrical units visible at the bottom lower left and lower right of the picture.