AD Sportscars is pleased to present Lamborghini Islero chassis 6300, an exceptional example distinguished by its direct Lamborghini family provenance, original high-compression V12 engine and extensive documented restoration history.
Originally delivered to Edmondo Lamborghini, brother of Ferruccio Lamborghini, chassis 6300 occupies a particularly important place among the surviving Isleros. Factory records confirm that its body was delivered by Carrozzeria Marazzi to Lamborghini on 19 September 1968, before the car was completed on 27 February 1969 and first registered on 31 March of that year.
The car was originally finished in Bronzo Chiaro with a Senape interior. It was also fitted with a special high-compression V12 engine, still present today. A copy of the factory build sheet records torque of 45.4 kgm at 5,500 rpm, suggesting that this unit may have been an early development of the engine later used in the Islero S.
Introduced at the 1968 Geneva Motor Show as the successor to the 400 GT, the Islero was conceived as a discreet and sophisticated grand tourer. Its elegant coachwork, designed by Carrozzeria Marazzi, reflected Ferruccio Lamborghini’s own preference for understated performance. He famously described it as a car for the tycoon rather than the playboy.
Only 225 examples were built in total, including 125 standard Isleros and 100 examples of the later Islero S. The model also appeared alongside Roger Moore in The Man Who Haunted Himself.
After remaining for at least 15 years in the ownership of a Belgian collector, chassis 6300 was sold to a Swiss enthusiast in March 2009. The new owner commissioned a comprehensive restoration, carried out principally by Garage Burnier and intended to meet the standards of haute horlogerie.
The body was stripped to bare metal and repainted, while extensive mechanical work was completed at the same time. Rather than returning the car to its original bronze finish, the owner chose to retain the elegant metallic bottle green it had worn for many years. Particular attention was paid to authenticity and presentation, with even small details such as the correct Ansa exhaust stickers specially sourced from the United Kingdom.
Further work was carried out by Garage Burnier in 2013 at a cost of approximately CHF 35,000. By the time the car was sold in July 2014, more than CHF 100,000 had been invested in its restoration. Kidston SA subsequently sourced the Islero for a world-class Lamborghini collection.
During this period, chassis 6300 became a recognised presence at several important European events. It received the “Meilleur Ensemble” award at the 2011 Landeron Classic and was displayed on the Marazzi stand at Milano AutoClassica in 2012, where Mario Marazzi personally signed the car.
In 2013, it participated in the Schloss Bensberg Classic Concours d’Elegance and joined the Lamborghini 50th Anniversary Grande Giro, where it achieved second place in the Concours d’Elegance.
The car returned to Belgium in 2017 after being acquired by another collector and imported with all local taxes paid. Between 2017 and 2021, L’Officina carried out another major programme of restoration and maintenance. The engine, gearbox and dashboard were dismantled, the mechanical systems were extensively revised and the body was once again completely repainted in metallic green.
More than €100,000 was invested during this second phase of work, resulting in the concours-level condition in which the car is presented today.
Since completion of the restoration, chassis 6300 has covered only approximately 400 kilometres while continuing to receive careful maintenance. It is accompanied by extensive invoices, historical records and supporting documentation, making it one of the best-documented and most celebrated surviving examples of the model.
Combining Lamborghini family ownership, its original high-compression engine, major concours recognition and more than €200,000 of documented restoration work, chassis 6300 represents an exceptionally rare opportunity to acquire a genuine Lamborghini family car.
For further information or to arrange a viewing, please contact us. Our offices are located in Zaventem, just five minutes from Brussels Airport.
Private owner car – AD Sportscars acting as intermediary
