Retail and trade are two outputs from the same calculation path. They are not two independent "market surveys".
Retail is framed as a typical retail or private-sale style context for that model and quarter. Trade is lower and is intended as a trade-in or dealer-oriented benchmark. The gap between them reflects how the site models those contexts, not a separate data feed.
Neither number is a quote, offer, or statutory valuation. Local demand, condition, optional extras, and negotiation will move real outcomes.
When explaining to customers, describe them as guide benchmarks from a published edition, and keep screenshots or notes of the quarter you used.
Trade value vs retail value
Retail is a guide-level asking context; trade is a lower dealer-oriented benchmark. Both come from the same engine inputs.