Online platform for buying and selling new and used specialized vehicules

We are looking to develop an online platform for buying and selling new and used specialized vehicles, targeting both individuals and professionals in the French market. The platform should include user registration, a dashboard for managing listings, and options for ad posting with paid plans available after an initial free period. It will feature advanced search filters (type, price, location), secure payment integration (Stripe, PayPal), and an admin interface for managing users and ads. The design should be modern and fully compliant with GDPR regulations.