31. She's hoping the next big step will come by year's end with a prototype model that can be tested. 32. Earlier in August that year the first engineering prototype Model 560 Citation V had successfully completed the type's maiden flight. 33. 3D's machines form a product out of an image through computers, instead of prototype models that need to be hand-crafted. 34. The first flight of the prototype Model 300 took place on September 3, 1983 and deliveries commenced the following year. 35. The Budd Company kept the only prototype model , but later renamed it " XR-Budd " and used it for marketing purposes. 36. Other activities of the body division included the design and building of prototype models for the large automobile manufacturers in Detroit. 37. Four prototype models were built and a pre-production model went on sale at the APRS exhibition at Earls Court in London. 38. Drafi is the prototype model for improved quality of life within a green environment, away from the pollution filled downtown Athens. 39. The prototype models were featured in " Vogue " magazine and donated to the Victoria and Albert Museum later that year. 40. I'm told the interior has been revised, but the test minivan was a prototype model , and the inside was a mishmash.