* Production Cutoff: This refers to when Chevrolet stopped manufacturing the 1990 model year Lumina. The exact date isn't readily available online, but it would have been sometime in the late summer or early fall of 1989.
* Emissions/Safety Standards Cutoff: This relates to when the 1990 Lumina would no longer meet certain emissions or safety standards required for legal road use in a specific jurisdiction. This varies widely by location and may involve factors like age, mileage, and specific tests.
* Insurance Cutoff: Some insurance companies may have a cutoff for insuring older vehicles like a 1990 Lumina, often due to parts availability or repair costs.
* Parts Availability Cutoff: This is the point where parts become extremely difficult or expensive to find for the vehicle, making it impractical to maintain. This is ongoing and varies greatly depending on the part.
To get a specific answer, you need to clarify what kind of "cutoff" you're interested in.
