Auction Grade Explanations: Exterior Scores, Interior Letters, and Condition Codes

When evaluating a Japanese imported vehicle, the auction grade is often the first figure mentioned by sellers and buyers alike. Knowing what each numerical and alphabetical score represents helps you set realistic expectations and focus your physical inspection on the right areas.

1. Overall Numerical Auction Grades

• Grade S or 6: Virtually new condition, typically assigned to recently registered vehicles with delivery or ultra-low mileage.
• Grade 5: Exceptional condition with very low mileage and minimal cosmetic wear inside or out.
• Grade 4.5: Very clean condition with only minor, easily addressed cosmetic blemishes such as light A1 scratches or U1 pin dents.
• Grade 4: Good standard used condition consistent with normal road use; may show moderate scratches or small dents noted on the body diagram.
• Grade 3.5: Noticeable cosmetic wear, multiple scratches or dents, or higher mileage that may call for cosmetic reconditioning.
• Grade 3, 2, or 1: Heavy wear, rough cosmetic state, or specialized modifications/corrosion (Grade 1/2) requiring thorough mechanical evaluation.

2. Repair History Grades: R, RA, and RB

An R or RA grade indicates that the vehicle has undergone repair or panel replacement affecting structural or inner frame components (such as radiator core supports, crossmembers, or pillar sections). RA generally denotes minor structural repair, whereas R covers more substantial repairs. When considering an R-grade vehicle, reviewing the inspector notes and performing an independent frame alignment check is essential.

3. Interior Letter Grades (A through D)

Alongside the overall number, auctions frequently assign an interior letter grade: A indicates a clean, well-kept cabin; B indicates normal minor wear; C indicates visible stains, trim scratches, or seat bolsters showing wear; and D indicates heavy interior wear, tears, or lingering odors.