Stellantis will become the latest U.S. automaker to require minimum advertised pricing (MAP), a rule that sets the lowest price dealers may publicly promote for a vehicle. The policy starts next month and follows similar requirements at General Motors, Mazda, Toyota, Kia and Hyundai, among others. Supporters frame MAP as a consumer-transparency measure that prevents dealers from advertising deceptively low prices before raising them when buyers arrive. The trade-off is that shoppers may not learn a dealership’s best available price without contacting it directly. Stellantis was marked down 4.55% in the cited market data.