- Leonardo da Vinci — Salvator Mundi (private ownership; location disputed)
The painting sold privately in 2017 and has since been linked to the Saudi crown / state collectors; its public whereabouts have been the subject of reporting and debate (reported as acquired for and held by Gulf/state parties, with intermittent sightings). Exact display/storage is not publicly confirmed. Wikipedia+1
- Bugatti — La Voiture Noire (one-off hypercar, private buyer)
Bugatti created La Voiture Noire as a single commission; it was sold to an anonymous buyer and remains a privately , one-off example typically kept in the owner’s private garage/collection rather than shown publicly. (Manufacturer description & coverage). Bugatti
- Rolls-Royce Sweptail (one-off coachbuild)
The Sweptail Rolls-Royce’s bespoke, one-off coachbuild commissioned by a private client remains in private ownership (reported owner Sam Li) and is an archetype of cars that live in private collections/secure storage rather than public galleries. Rolls-Royce Motor Cars+1
Photo: James Lipman / jameslipman.com
Photo: James Lipman / jameslipman.com
- Ferrari Special-Projects one-offs (SP-series / one-off commissions such as SP1, SP2 and later commissions)
Ferrari’s Special Projects and one-off programme produces bespoke, single-client cars that typically enter private collections and are kept off public display or stored in collectors’ facilities. Examples and the programme are documented by Ferrari. Ferrari+1
- High-value Basquiat works in private vaults / private collections
Many of Basquiat’s most valuable canvases circulate in private hands and are frequently held in freeports or private galleries rather than on public view. The broader freeport/vault reporting explains how works move privately between family offices and collectors. (Several Basquiat works have set auction records and other major pieces remain in private collections.) Art News+1
- One-off / bespoke superyachts in shipyards or private anchorages (example: recent Feadship custom deliveries and similar one-off builds)
Custom superyachts (single-owner builds) often spend extended periods in shipyards, yards or secure berths before and after delivery and then remain in private ownership (the Feadship “ONE” / Les Cinq example shows the bespoke delivery pipeline; many bespoke yachts remain effectively privately stored). Boat International+1
- High-value contemporary sculpture & editions held privately (examples: Jeff Koons pieces & private sculptural commissions)
Iconic contemporary sculptures (single commissions or extremely limited pieces) frequently move into private collections and storage. Artist/edition records and market reporting show how certain high-value sculptural works are treated as private assets and often kept in vaults or private displays. JEFF KOONS+1
