Manheim (a Cox Automotive company) is the reference wholesale auto auction in North America. When dealers quote “book,” they increasingly mean Manheim Market Report. The platform's data, arbitration system and title handling are the most mature in the trade — that is precisely why it is dealer-only.
- Access requires a dealer license (or a broker relationship with one).
- Arbitration windows are short and condition-graded; know the light system before your first lane.
- Fees are lower per-vehicle than salvage platforms but assume professional buyers who inspect fast and pay fast.
For a private buyer, Manheim matters mainly as the price floor beneath every used-cars listing you see at retail. If a dealer's asking price is below Manheim wholesale for the trim, ask why.