Japanese car auction sheet grades explained: 4, 4.5, 5, R and S

Almost every used car in Japan is sold through one of the big auction houses, and each one is inspected by a neutral grader who fills out an auction sheet. Learning to read that sheet is the difference between a confident purchase and an expensive surprise, because it tells you the true condition far better than photos.

The overall grade is a single number, usually from 3.5 to 5. Grade 5 is near-new with minimal wear. Grade 4.5 is excellent with very light marks. Grade 4 is a solid, average used car with normal wear and is the most common grade for sound export stock. Grade 3.5 shows more visible wear or minor repairs and can be great value if you read the detail.

Special letter grades carry important meaning. Grade R or RA means the car has had accident repair history; it is not automatically a bad car, but you must check what was repaired. Grade S marks a nearly new vehicle. A grade of 0, *, or X usually signals significant damage, replaced panels or other serious issues that exporters generally avoid.

Interior condition is scored separately with a letter from A to D. Interior A is excellent and clean, B has light wear, C shows clear use such as stains or scratches, and D needs work. A common sweet spot for export is an exterior 4 with an interior B, giving a tidy, honest car at a fair price.

The sheet also has a car map or diagram with shorthand marks at each point of damage. A1 is a tiny scratch, A2 and A3 are progressively larger scratches, U1 to U3 are dents of increasing size, and W marks a repainted or repaired panel. A cluster of W marks on one side is a clue to check for past accident work even on a clean-looking grade.

When you buy through ASTONISHING CARS we translate the auction sheet for you, flag any R history or repaint marks, and refuse units whose sheet does not match their photos. Reading the sheet yourself, though, lets you bid with confidence and understand exactly why one grade-4 car is priced above another.