Original MSRP is estimated from a lookup table of base MSRP by model year, motor and battery pack (Launch Edition treated as Quad/Large). Options are not included, so MSRPs are conservative.
Fair value = MSRP × age-based retention (−20% first year, −11%/yr after, consistent with observed EV-SUV depreciation) plus a mileage adjustment of $0.12 per mile above/below the 12,000 mi/yr norm.
Value vs fair = fair value − asking price (positive = priced below modeled fair value).
Deal score (0–100) rescales that percentage gap; 50 = priced exactly at modeled fair value.
Configs marked ≈ were inferred (most 2023 listings without stated pack are Quad-Motor/Large — the dominant 2023 build).
Price trend tracks each VIN across data pulls: a listing's hist array records every observed (date, price) pair, and the trend column shows the cumulative change since first observed (▼ green = cut, favorable to buyers). "New this pull" = first seen in the latest refresh; dimmed rows weren't re-observed in the latest pull (may be sold, delisted, or simply outside the sampled pages).
This is a screening model, not an appraisal: verify options, battery health, title and history before buying.