There are four levels: fair, good, very good and excellent. KBB says that of the cars it values, 3% are excellent, 18% are fair, 23% are very good and 54% are in good condition. If you want to compare those terms to Edmunds' terms, "very good" at Blue Book would be our "outstanding," "good" would be our "clean," and "fair" is our "rough."
https://www.edmunds.com/appraisal/
Blue Book
https://www.yourmechanic.com/article/how-to-calculate-the-value-of-a-salvaged-car-by-jason-unrau
What's my car worth? Kelley Blue Book is the trusted resource to find everything you need to value your car and find your next one. We offer trusted and timely car valuations, valuable comparison tools, shopping recommendations, unbiased car reviews, a robust mobile site optimized for smartphones, and much more. Find your next car
https://www.kbb.com/used-cars/
Classic car value and antique car values are determined by a multitude of factors both in and out of the owner’s control. A collector car’s market value is best determined by understanding supply and demand, using historical sale prices, and reviewing current asking prices on available inventory.
https://www.hagerty.com/valuationtools
doc for "blue book value of my car".(Page 1 of about 13 results)