John Delorean - Boceto original x3

1. Conceptual sketch – Upper arm suspension and roll bar system (DeLorean Truck)
An exceptional original drawing attributed to the legendary automotive engineer John DeLorean, corresponding to the conceptual development of the unfinished DeLorean Truck.
This sketch shows the design of the upper suspension arm and roll bar system, with technical handwritten notes such as “Roll bar”, “upper arm fluted tapered pod” and “snap in joint,” reflecting the designer’s innovative approach to advanced mechanical solutions.
Although it is not signed, the piece bears authentication issued by James Spence Authentication, and includes its corresponding certificate of authenticity.
An extremely rare piece, ideal for automotive collectors, industrial design enthusiasts, and high-level historical memorabilia.

2. Technical sketch – Lower suspension arm (DeLorean Truck)
Rare original technical drawing attributed to John DeLorean, linked to the conceptual project of the DeLorean Truck, a vehicle that never went into production.
The schematic represents the lower suspension arm system, including handwritten notes such as “Lower arms”, “strut” and “inner end?”, which provide a direct view of the development process and the engineering thinking behind the design.
The piece has been authenticated by James Spence Authentication, accompanied by its official certificate.
A document of great historical and technical interest, perfect for collectors of motorsport and classic automotive design.

3. Dated technical sketch (May 11, 1977) – Shock absorber and strut
Important original sketch attributed to John DeLorean, dated May 11, 1977, related to the development of the projected DeLorean Truck.
The drawing shows the shock absorber and strut system, including handwritten notes by the designer themselves such as “shock” and “strut,” as well as technical conversions to millimeters on the reverse, which evidence a detailed and practical engineering process.
Authenticated by James Spence Authentication, it comes with its full letter of authenticity.
A unique collectible piece, with great historical value within the realm of experimental automotive design.