Beta note: This watchlist is confidence-gated market intelligence, not appraisal advice.
1) Biggest Positive Outlier (Observed)
Car: Linden Green 2018 991.2 GT3 Touring (6-speed)
Close: $315,000
Takeaway: Exceptional color + Touring stack remains the top observed cluster.
2) Biggest Negative Outlier (Observed)
Car: Standard-color 2018 991.2 GT3 PDK examples in lower-mile bands
Observed spread: materially below Touring + PTS cluster
Takeaway: Transmission + spec stack still dominates color-only narratives.
3) Color Momentum This Week
Current leaders by observed average include Linden Green, British Racing Green, and Oryx White.
Confidence: Low at color level due to limited repeat comps.
4) Model/Trim with Most Mispricing Risk
991.2 GT3 Touring (especially rare colors).
Takeaway: Sellers frequently underprice the full spec stack, not just the paint code.
5) Low-Confidence Zones
Any color-level claim with very low sample count, plus records missing mileage metadata.
Data refresh cadence: weekly. Method and confidence policy are published in PTS Delta Beta docs.
