These color-coded compendiums serve as resources for valuing vehicles, particularly when considering purchase, sale, or insurance. One typically refers to vehicles with a high mileage or significant wear and tear, reflecting a lower estimated value. The other often indicates vehicles in excellent condition, typically suggesting a higher market price. For example, a dealer might consult both to determine a fair trade-in value for a used car.
The significance of these valuation guides lies in their ability to provide standardized, objective assessments. They benefit both consumers and industry professionals by establishing a common ground for pricing negotiations. Historically, these resources have evolved from printed publications to digital databases, constantly adapting to market trends and technological advancements to maintain their relevance.