I think according to California any car over 25 years will considered as a Classic. My car is 1990 so another 9 years i will be a Classic.... Oldest and Fastest LS400...LOL
Will be considered a classic, but too bad it'll still have to get smogged. CA got rid of the law stating that any car over 25 or 30 years old no longers needs to be smogged. I think it's grand fathered though if your car is from 73 or older.