In California, there is law that was passed that allows registration of "special manufacture" cars to avoid having to go through the draconian smog testing requirements. It is called "SB 100". There is a limit on the number of cars that can be registered each year via this process. So for instance, if you have a brand new Superformance, Factory Five, or Kirkham Cobra, you can get the car registered for use on California roads via the SB 100 process, and register the car, more or less, as whatever year you want. As most U.S. Cobra replica cars look like 427 S/C Cobras, they are registered in California as 1965 year of production, though they are brand new cars. So, this continuation 289 Cobra built by AC Cars in 1995 is not a dissimilar situation in respect to the year of manufacture on its registration. I guess as long as there is full disclosure to a buyer as to what they are actually buying, which can also be surmised by the price (obviously much lower than the "real deal" car), then no harm done as long as it is all on the up and up.