[jhv48]

As others have said before, registering a vehicle as any year other than the year it was actually completed is considered fraud and can be punished accordingly. California bases registration fees on the year of completion so claiming your car was built in 1965 cheats them of the fees a newer car would be charged. It’s always about the money in California. California holds the car owner completely responsible for correctly registering a vehicle even if the DMV employee screws up and registers it as a 1965. Technically, California is supposed to honor other State’s registrations, and they sometimes do, but they still hold the owner responsible if the year of completion doesn’t match the year on the registration.
Not sure how insurance companies would react if your “1965” replica was totaled and a sharp claims adjuster refused your claim due to you falsely claiming your car was a 1965. Once again, insurance fees are partly based on year of actual production.
I guess, to me, I’m not willing to gamble on a bogus registration. Getting an SB100 exemption and insuring my car as a 2009 Superformance was costly and time consuming. But, I’ve driven 36,000 miles without worrying about it.
Your choice.