In the course of assisting Knut Grimsrud in creating the DeLorean Production Chronology over the past few years, we've noticed a few cars like this. One possible explanation (partially backed up by a De Lorean Motor Company internal memo discovered at the factory in 1997) is that some cars for one reason or another were pulled from the assembly line (the memo discusses cars with emission problems, in particular) and once the problem was corrected they were returned to production, hence the build month being "out of whack" with the rest of the VIN's brethren. I second Erik's welcome to Bastiaan, and encourage you to register for the DeLorean Owners Directory... James Espey DeLorean Motor Company Houston, Texas 281/568-9573 800/USA-DMC1 http://www.delorean.com > Thats interesting, my Delorean is VIN 4512 and it is an Oct. 81 > build. I wonder why VIN 4597 was built in August. > Welcome to the strange world of Deloreans! > > Erik > 4512 Oct. 81 > >> Ohyeah, another nice one. The car manufacturing date stamped on the >> plate >> mounted in the door says august 81 >> >> Bastiaan Olij >> Owner of Vin #4597 build august 1981 since 21 June 2001