It is understood that Lockwood plans to offer the car for display around prominent New Zealand car museums so "all Kiwis could enjoy and learn about this unique vehicle, its provenance and the legend behind it - Bob Turnbull".
Proceeds from the sale go to the Bob Turnbull Charitable Trust, established to help potential engineering students and facilitate improvement of the social, cultural, educational, economic and spiritual lives of Turnbull's Central Otago community.
The Bugatti Type 57 is one of the most revered models in the glittering history of the famous French marque.
It features cutting-edge engineering, for its time, in all aspects of its chassis, suspension, engine and driveline, which allowed for unparalleled levels of performance and on-road refinement.
During the car's time in France, it was owned by a member of the Louis Vuitton fashion designer family and also an Austrian aristocrat.
In 1956, it was imported into New Zealand for £350 ($630).
A year later, Turnbull, who is credited with developing a key element of Hamilton Jet propulsion units, bought it and transported it to the tiny Central Otago gold-mining town of Ophir where it remained for the past 50 years.