Saturn Corp.'s Project Innovate, the program aimed at creating a midsize move-up car from an Adam Opel AG Vectra platform, is running behind schedule, say Saturn insiders. The car, which is Elated for a 1999 model year intro and would be built at General Motors Corp.'s Wilmington, DE, plant, will not be a rebadged Vectra, says Saturn President Donald W. Hudler. It will be wrapped in Saturn's patented polymer composite side body panels and given a distinctly Saturn identity. But parts would come from all over the warld, which could dilute Saturn's image as an American producer of quality small cars. The engine and transmission would be done by Opel. Powertrain development is apparently part of the problem. Another Saturn source says a proposed exterior design has not been received well in early customer clinics. GM's board of directors reportedly was going to approve funding for it at its April meeting. Now that may be delayed. "The original deadline for a '99 model year introduction doesn't look like it is doable," says the source.