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Japanese auction grades explained

A Japanese auction grade is the condition score an auction inspector gives a used car before it is sold. The overall grade runs from S or 6 for a nearly new car, through 5, 4.5, 4, 3.5 and 3 for used cars, down to 2 and 1 for poor ones. R or RA means the car has a recorded accident repair. A separate letter from A to E grades the interior, so 4.5/B describes a very good car with a lightly used cabin.

Key points

  • By auction standards, 4 is a good used car, 4.5 is very good and 5 is excellent. Many sound used cars grade 3.5.
  • R and RA are repair grades. They record a repaired accident and are not points on the 1 to 5 scale.
  • The letter after the number is the interior grade, from A (best) to E.
  • 0, *** or a blank box means the car was not given a normal grade. The notes usually say why.
  • Each auction house sets its own rules, so the same grade at two houses is close but not identical.
  • Read the grade with the damage diagram and the inspector's notes, then check it against the original record.

What a Japanese auction grade is

Most used cars exported from Japan are first sold at dealer auctions run by houses such as USS, TAA, JU, CAA, HAA and Aucnet. Before the sale, an inspector working for the auction house looks the car over and records the result on the auction sheet. The overall grade, called 評価点 (hyōka-ten, evaluation points) in Japanese, is the headline of that record.

The grade weighs the body and paint, the interior, the mileage for the car's age, any accident repair, and faults the inspector notices. It sits in the grade box with the interior letter beside it, written as 4/B or as two separate boxes. Some houses also give the exterior its own letter.

The inspection is short. It is a check by a trained inspector at the auction site, not a workshop diagnosis, so the grade should always be read with the rest of the sheet. For the whole sheet, see how to read a Japanese auction sheet.

Japanese auction grade chart

The chart shows how each overall grade is generally understood at the large auction houses. The wording and the thresholds belong to each house, so use it as a guide and check the legend of the house that sold the car.

Japanese auction overall grades and what they generally mean
GradeGeneral meaningWhat you can expect to see
S, or 6 and above where usedNew or nearly newA very recent car with delivery mileage or very low kilometres. Few or no marks.
5ExcellentLow mileage for the age, almost no marks, no repairs.
4.5Very goodLight signs of use, usually a few small marks such as A1 or U1. No accident repair.
4GoodOrdinary wear for the age and mileage. Small scratches or dents, perhaps a touched-up panel. No accident repair.
3.5AverageVisible scratches and dents, often on several panels, or a panel that needs paint. Higher mileage is common.
3Below averageNoticeable damage or wear, several panels needing paint or repair, possibly rust.
2PoorHeavy wear, corrosion, rust holes or many damaged panels.
1Very poor or a special caseOften used for flood or fire damage, or for a heavily modified car, such as one with an engine swap or an aftermarket turbo. The notes say which.
R, RA (A at some houses)Repair historyThe car had accident damage to its frame or structure that was repaired. A separate category, not a point on the scale.
0, *** or blankNot gradedNo normal grade was given. Reasons include unrepaired damage, a car that does not run, flood damage or a car sold as is.

In exporter listings, 3.5 and 4 are the grades you see most often. Grades move in half steps in the middle of the scale, and a half step is a judgement call: two inspectors can grade the same car half a point apart.

Grade 5 vs 4.5 vs 4

These three grades cover the cars most careful buyers look at. What separates them is mostly the number and size of the marks, the mileage and the age.

  • A 5 is rare on a car more than a few years old. It needs a body with almost nothing to record and low mileage for the age.
  • A 4.5 allows a few light marks, usually level 1 codes such as A1 or U1, and normal mileage.
  • A 4 allows more small marks and a panel or two that has been touched up, but no repair to the frame or structure.
  • Mileage counts. A clean car with high kilometres is unlikely to get a 5, and may grade 4 or 3.5 for wear alone.

Look at the diagram to see what the half point is made of. A 4 with three A1 marks and a 4 with a W2 on the roof are graded the same and are not the same car. More examples are in grade 5 vs 4.5 vs 4.

Grade 3.5 and 3

A 3.5 is a used car with visible wear: several scratches and dents, or a panel or two that need paint. A 3 has more of the same, or rust that needs attention. Many cars that are mechanically sound grade 3.5 because of cosmetic wear alone.

A lower grade tells you how much cosmetic work the car needs. It does not on its own say whether the car is sound. Where the marks are matters: scuffs on bumpers and door edges are a different matter from rust on a sill or a wavy pillar. See grade 3.5 cars for what to look at.

R and RA auction grades: repair history

R and RA replace the number when the inspector finds that the car has had accident damage repaired. They are a separate category, not a low score. An R car can be in better cosmetic order than a car graded 3.

In the Japanese trade, repair history (修復歴, shūfuku-reki) generally means damage to the car's frame or framework that has been repaired or replaced: a pillar, the floor, the roof, a cross member, the radiator core support and similar parts. A replaced bolt-on panel such as a door, bonnet or wing does not count on its own. That is why a car with an XX on its door can still carry a number grade, while a car with a straightened pillar gets R or RA.

Houses word the two grades differently. A common reading is that RA marks a smaller repair and R a larger one. Some houses add a number, such as R1 or RA2, and some use A for a repaired car. Published guides disagree on the details, so the legend of the house that sold the car is the authority. Read the diagram, the notes and the photos to see what was repaired.

Flood and fire damage are not usually recorded as R. Look instead for a grade of 1 or 0 and notes such as 冠水 (kansui, flooded). More on this in R and RA grades explained.

Grade 0, *** and ungraded cars

Some sheets show 0, *** or nothing in the grade box. This means the house did not give the car a normal grade. Reasons include unrepaired accident damage, a car that does not run, flood or fire damage, a heavy modification, or a car sold as is without a full inspection. Some houses also use 0 for a repaired car. The notes usually say which, and an ungraded car is an unknown until you know the reason.

Interior grades A to E

The interior gets its own letter, written beside the overall grade. It covers the seats, carpets, headlining, dashboard, door trims and smells such as smoke. It says nothing about the engine.

Japanese auction interior grades
Interior gradeGeneral meaning
AExcellent. Very clean, little or no sign of use.
BGood. Clean and tidy, with light wear.
CFair. Visible wear, small stains or marks, perhaps a small burn.
DPoor. Stains, tears, burns or smells that need cleaning or repair.
EVery poor, worse than D. Used at some houses only.

A car can score well on one scale and poorly on the other. A 4/C has a good body and a cabin that will need cleaning or repair, and a 3.5/A has a worn body and a clean cabin. Some houses grade the exterior with a letter on the same A to E scale. See interior grades A to E for more.

How auction houses grade differently

The scale is broadly shared, but each house writes its own rules and trains its own inspectors. A 4 at one house and a 4 at another are close, not identical. We do not rank houses by strictness, because published comparisons contradict each other.

Major Japanese car auction houses and their grading
Auction houseWhat to know
USSThe largest auction group in Japan, with venues across the country. Its sheets show the overall grade with separate interior and exterior letters.
TAAAn auction network associated with Toyota. It grades to its own legend.
JUAuctions run by regional used-car dealer associations. Rules are set at association level, and sheets can look different from venue to venue.
CAAA regional group often mentioned for venues in central Japan. Its own sheet and legend.
HAAKnown for its Kobe venue. Sources describe its corporate ties differently.
AucnetAn online auction. Cars are inspected at the seller's premises rather than at a central yard, and the report comes with photos.

Find the house in the sheet's header before you read the grade, and compare grades within one house where you can. See Japanese car auction houses explained.

Worked examples

These are illustrative sheets, not real cars. Each shows how the number, the letter, the diagram and the notes fit together.

4.5/B, 2019 hatchback, 38,000 km
The diagram shows A1 on the rear bumper and U1 on the left rear door. A very good car with two small marks, which fits a 4.5. Next, compare the mileage with earlier readings for the same chassis number.
4/C, 2017 SUV, 92,000 km
A2 on both front doors, U1 on the tailgate and W1 on the front bumper, with a note about worn seat bolsters. A good body with some touched-up marks, and a cabin that shows its use.
3.5/C, 2015 saloon, 140,000 km
Many A1 and A2 marks, U2 on a rear quarter panel and S1 by a wheel arch. Average condition, with cosmetic work to budget for and rust to look at in person.
RA/B, 2018 hatchback, 55,000 km
XX on the bonnet, W1 on the front wing and a note about repair to the radiator core support. The front of the car was repaired after an impact. The notes and photos show where, and an inspection in person shows how well.
*** with a note 冠水
No grade, and the note says the car was flooded. A clean-looking cabin in the photos does not cancel that note.

Common mistakes when reading auction grades

  • Reading the number without the letter. Inside, 4.5/D and 4.5/A are very different cars.
  • Comparing grades across auction houses as if the scales were identical.
  • Treating R or RA as a low score instead of a repair record, or ignoring it because the body looks clean.
  • Assuming a high grade means no mechanical problems. The grade is not a mechanical inspection.
  • Trusting a grade quoted in a message or an advert. Ask for the full sheet, then check it against the original record.
  • Forgetting time. The grade describes the car on the auction day. A car can be auctioned more than once, with a different grade each time.
  • Skipping the notes. Rust, flood, odometer and modification remarks are often only in the Japanese text.

What an auction grade cannot tell you

  • The mechanical condition. Inspectors note faults they find, but the grade is not an engine or gearbox diagnosis.
  • Anything after the auction. Damage in transit, repairs abroad and later mileage are not on the sheet.
  • Repairs the inspector could not see, such as good bodywork under fresh paint.
  • Service history, or accidents that were never inspected or recorded.
  • The price on its own. Model, year, mileage and demand also decide what a car sells for.

How to check the grade a seller gives you

  1. Get the chassis number from the car

    Read it from the car, not the advert. See how to find the chassis number.

  2. Ask for the full auction sheet

    The auction house, sale date and lot number should be visible.

  3. Compare the copy with the original record

    Grade, mileage, date and damage marks should match the original auction record for that chassis number.

  4. Look for other sales of the same car

    Each auction sale has its own sheet and grade.

  5. Have the car inspected in person

    Especially when the grade is R, RA, 0 or below 3.5.

A CarTrust report shows the original auction sheet and auction photos when they are recorded for the chassis number, along with accident, damage and theft history, recalls and more. Mileage history is in the Silver and Gold reports, not Bronze. See the sample report and what each report includes.

If the seller's sheet and the record differ, how to tell if a Japanese auction sheet is real explains what to ask.

Frequently asked questions

What is a good Japanese auction grade?

By auction standards, 4 and above is a good used car, 4.5 is very good and 5 is excellent. Many sound used cars grade 3.5. Read the grade with the interior letter, the damage diagram and the notes.

What does grade 4.5 mean on a Japanese auction sheet?

Very good condition. The car shows light signs of use, usually a few small marks such as A1 or U1, and has no recorded accident repair. It sits between 4 (good) and 5 (excellent).

What does 4/B mean on an auction sheet?

4 is the overall grade, meaning good condition with ordinary wear for the age. B is the interior grade, meaning a clean cabin with light wear.

Is a grade 3.5 car good?

A 3.5 is an average used car with visible marks. Many cars grade 3.5 for cosmetic wear alone. Check where the marks are, what the notes say and whether there is rust.

What do R and RA mean on a Japanese auction sheet?

Both mean the car had accident damage to its frame or structure that was repaired. RA usually marks a smaller repair and R a larger one, but houses define them differently, so check the legend, the diagram and the notes.

Is an RA grade car bad?

RA records a repair. It does not judge the car. What matters is what was repaired and how well, which the notes, the photos and an inspection in person can show.

What is the highest Japanese auction grade?

S, or 6 and above at houses that use higher numbers, for new or nearly new cars. For an ordinary used car, 5 is the top of the scale.

What does grade 0 or *** mean?

The car was not given a normal grade. Reasons include unrepaired damage, a car that does not run, flood or fire damage, or a sale as is. The notes usually say which.

What do interior grades A, B, C, D and E mean?

A is excellent, B is good with light wear, C is fair with visible wear or stains, D is poor, and E, used at some houses, is worse than D. The letter covers the cabin only.

Are auction grades the same at every auction house?

Close, not identical. USS, TAA, JU, CAA, HAA and Aucnet each set their own rules, so compare grades within one house where you can.

Does a high auction grade mean the engine is fine?

No. The inspector notes faults they find, but the grade is not a mechanical inspection. An inspection in person or a workshop check covers the engine and gearbox.

How do I find the auction grade of a car?

Ask the seller for the auction sheet, or enter the chassis number into a vehicle history report. If the car was sold at a Japanese auction and the record is held, a CarTrust report shows the grade, the original sheet and the photos.

Related reading

Written by the CarTrust team. Practice varies between auction houses and manufacturers, and we say so where it does.

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