One number. Seven signals. Zero guesswork.

Whether the vehicle has been inspected and at what level. Certified third-party = full credit; Premium PPI = strong; Basic PPI = partial; No inspection = zero.

Certified 25 · Premium 20 · Basic 14 · None 0

Clean-title vehicles with zero reported accidents earn the maximum. Each accident reduces the score; branded titles earn zero.

Clean & 0 = 15 · 1 = 9 · 2 = 4 · 3+ = 0 · Branded = 0

Documented maintenance history and dealer servicing both count. Full paper trail beats a verbal history every time.

Documented +8 · Dealer-serviced +4 (cap 12)

Fewer owners typically means better continuity of care and clearer history.

1 owner = 8 · 2 = 6 · 3 = 3 · 4+ = 1

Compared to a 12,000 mi/year baseline. Lower-than-expected mileage earns full credit; very high mileage penalizes the score.

≤−15k = 15 · ≤+5k = 13 · ≤+20k = 9 · ≤+40k = 5 · else 2

Newer model years carry more remaining service life and stronger residual value.

≤2 yr = 10 · ≤5 = 8 · ≤8 = 6 · ≤12 = 4 · else 2

Cosmetic and mechanical grade reported by the inspector or seller — paint, interior wear, tires, brakes, fluids.

Excellent 15 · Good 11 · Fair 6 · Poor 2