1966 Lamborghini 400 GT Interim
- Engine
- 4.0L V12, 320 bhp, five-speed synchromesh transmission
- Colour
- 'Rosso Alfa' (red) over tan leather

A 1965–66 Lamborghini 400 GT 'Interim', one of only 23 examples built with the 4.0-litre V-12 in the two-seat bodyshell derived from the 350 GT. Penned by Touring and engineered by Bizzarrini and Dallara, it features a 320 bhp engine and a new five-speed all-synchromesh gearbox. Delivered new to California through the Lamborghini West distributor Bob Estes, it retains its matching-numbers drivetrain and received a ground-up restoration by respected Lamborghini specialist Gary Bobileff.
Ownership
- —Auction saleSold US$610,000
- → 1980Acquisition unknownPrevious owner in Orange County, Californiapartial documentation
Car was reportedly in original unmodified condition when sold to the subsequent owner around 1980.
- 1980 →Private saleCalifornia-based collectorpartial documentation
Long-term custodian who kept the car in a single collection for roughly four decades, driving it infrequently; commissioned a full ground-up restoration by Lamborghini specialist Gary Bobileff.
- Date unknownFactory deliveryBob Estes Lamborghini Westpartial documentation
Regional distributor for Lamborghini on the West Coast who handled the original sale of this car in California; its appearance on a period promotional postcard dates from this time.
Competition
No competition history extracted from the catalogue.
Maintenance & restoration
- 1976ServiceGary Bobileff
Ongoing maintenance of the car begun by Lamborghini specialist Gary Bobileff, who has continued to care for it from this point forward.
Maintenance predates the current owner's acquisition in 1980, suggesting Bobileff was involved with the car under a prior custodian.
- —RestorationGary Bobileff
Complete ground-up restoration carried out by noted Lamborghini specialist Gary Bobileff. Restoration receipts and photographic documentation are available.
Work took place after the current owner's acquisition in 1980; original matching-numbers V-12 retained throughout.
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