“Classic car” is defined differently by different people. A classic automobile, according to the Classic Car Club of America, is one that was built between 1915 and 1948. For registration purposes, however, many states consider such cars to be antique or vintage vehicles.
In most cases, a classic car has to be at least 20 years old to qualify for insurance and registration. The car should have been kept to its original design and specifications if you intend to register it (and insure it). In other words, any restoration should stay true to the original design and construction, from the interior materials to the engine parts. This also means no modern touches are permitted.
It is interesting because, in some ways, this category is very specific, but in other ways, it has the loosest interpretation. To be regarded as vintage, a car must have been manufactured between 1919 and 1930. It does not have to be in its original condition, however. They can be lifted, chopped, modded, or customized without losing their vintage status. The only prerequisite is an age range.
If you enjoy browsing antique car stores, you’ll find a lot of old junk mixed in with some treasures. Antique cars are different from other cars. The condition of an antique car can range from nearly original to nearly new, depending on the state.
Generally speaking, cars getting into this category are 45 years or older, but it can vary from state to state. In Michigan, for example, antique plates can be registered on vehicles that are over 20 years old. If the car or truck is not modified, it can either be considered vintage or antique.