JDM Silvia S13: 302,761 documented across 4 chassis prefixes (S13 CA18 2WS, KS13 CA18 4WS, PS13 SR20 2WS, KPS13 SR20 4WS) and 25 chassis-specific matrix rows (18 base trim families spread across the four chassis groups). CA18 generation (S13/KS13) launched 1988; SR20 generation (PS13/KPS13) facelift from January 1991. K's = top-trim turbo (CA18DET/SR20DET); Q's = mid-trim NA (CA18DE/SR20DE); J's = entry NA. HICAS II / Super HICAS denotes the 4-wheel-steer (KS13/KPS13) chassis. 22-colour matrix sourced from gtr-registry.com Wayback 2023-12-07 (en-s13-colours.php). Visible colour cells sum to 302,640; the remaining 121 records have unknown chassis-prefix assignment (S13 69 / KS13 27 / PS13 13 / KPS13 12). CONFLICTING with the prior repo figure of 298,904 (also single-archive from gtr-registry, compiled from the per-prefix VIN tables); the +3,857 / +1.3% delta likely reflects updated gtr-registry records between vintages. Both estimates remain pending corroboration by a primary Nissan source.