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Grade 4.5 vs Grade 5 — is the upgrade worth it?

Updated August 5, 2026 · 5 min read

Grade 5 looks better on paper. Grade 4.5 is often the smarter spend. Here's how to choose without overpaying for polish you'll stop noticing in a week.

The difference in plain English

Grade 5 is essentially as-new condition with very low mileage. Grade 4.5 is excellent used condition — light use, usually still under roughly 100,000 km, with only minor cosmetic history. Both sit above the everyday Grade 4 baseline. The half-step below 4.5 is covered in Grade 4 vs 4.5.

Grade 4.5Grade 5
ConditionVery good, light useAs good as new
Typical mileageOften under ~100,000 kmUsually very low
PricePremium over Grade 4Highest everyday premium
Best forValue + pride of ownershipNear-new without buying new

When Grade 5 is worth it

  • You specifically want near-new condition and will keep the car a long time.
  • The price gap to 4.5 in your market is small.
  • The Grade 5 sheet also shows strong interior/exterior letters (A/B).

When Grade 4.5 wins

  • The Grade 5 premium is large for cosmetic differences you won't feel daily.
  • You care more about a clean damage map than a headline number.
  • Budget is better spent on a newer year or better options at 4.5.
Always read beyond the number. A Grade 5 with suspicious mileage claims, or a 4.5 with clustered repair marks, should send you back to the damage map and a verified sheet.

Full scale: Japanese auction grades explained.

See the real grade on your car

Verify the original auction sheet by chassis number before you pay a Grade 5 premium.

Verify auction sheet

Frequently asked questions

Is Grade 5 much better than 4.5?
Grade 5 is closer to new; 4.5 is still excellent used condition. The jump is real but often not worth a large price premium for everyday driving.
Should I always buy the highest grade I can afford?
Not always. A clean Grade 4 or 4.5 with a transparent damage map often beats an expensive Grade 5 that stretches your budget.

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