Once the digital model of the Challenger was rendered, engineers ran virtual crash tests (involving about a trillion calculations each). Chrysler says the testing data contributed to the knowledge base, which engineers used to refine the final designs. When the first prototype vehicle was built, from parts tooled directly from computer data, the proto-Challenger met all crash standards. The assembly process was a breeze too, as the system checks the new parts for fit and assembly access, and welding points. Motor Trend reports Chrysler CEO Bob Nardelli says KBE won't mean more job cuts for engineers, but but will allow it to do more with less as the company becomes part of Italy's Fiat Group.