2025 Bonmont Sale Results
Bonhams|Cars held their 2025 Bonmont Sale this past weekend on June 29 about 30 minutes outside of Geneva. More than 40 vehicles were offered, spanning the pre-war era through to modern hypercars. Bonhams|Cars sold a total of CHF 5,841,152.80 including the automobilia that opened the auction, roughly $7,380,000. We’re going to take a closer look at their top sales.
This 1967 Ferrari 275 GTB/4 Berlinetta, chassis number 09603, is a stunning example of the model well-known for its impressive power, nimbleness, and speed, while also delivering outstanding comfort and a superior level of craftsmanship. Its iconic Pininfarina body design includes notable features like a sharp nose, elongated bonnet, functional side vents, elevated waistline, and a compact yet elegantly rounded tail. Drawing from Ferrari’s racing technology, this model incorporates elements such as a rear spoiler and stylish cast-alloy wheels to boost both its visual appeal and driving dynamics.
On the mechanical front, this Ferrari boasts an independent rear suspension system, featuring a double wishbone and coil-spring configuration akin to that in the 250LM racer. It also utilizes a rear-mounted five-speed transaxle, which aids in achieving balanced weight distribution. Underneath the hood lies the ultimate ‘/4’ version of the 3.3L V12 Colombo engine, equipped with four overhead camshafts, six twin-choke Weber 40 DCN carburetors by default, and a dry-sump lubrication setup. This robust engine delivers 300 bhp at 8,000 rpm and 240 lb/ft of torque at 6,000 rpm, allowing it to reach speeds close to 165 mph.
Originally presented in Italy with an Amaranto exterior and beige leather interior, the car has been carefully restored to its original specifications and holds Ferrari Classiche Certification. This was well-sold for CHF2,875,000, or about $3,632,000 by Bonhams|Cars at their 2025 Bonmont Sale.
Sold for CHF2,875,000
This 2022 Ferrari 812 GTS Hardtop Convertible, chassis no. ZFF97CMB000269970, boasts a mere 170 kilometers on the odometer since new and was delivered in Switzerland. As one of the most powerful convertibles ever made, this model serves as the convertible version of the 812 Superfast, marking Ferrari’s first series-production V12 front-engined convertible in half a century.
Featuring numerous factory options and including all original documents and tools, the 812 GTS is based on the acclaimed 812 Superfast, introduced in 2017. It harnesses the power of a naturally aspirated 6.5-liter V12 engine, delivering an impressive 800 PS (789 bhp) and 718 Nm (530 lb/ft) of torque without using turbocharging or hybrid technology. This engine has been celebrated as the strongest naturally aspirated production-car engine available upon its debut. Its performance capabilities are further enhanced by Electronic Power Steering (EPS), rear-wheel steering, a seven-speed dual-clutch automatic gearbox, 20-inch wheels fitted with Pirelli P Zero tires, and Brembo Extreme Design carbon/ceramic disc brakes.
The 812 Superfast incorporates sophisticated active and passive aerodynamics to improve downforce and airflow management, reaching a top speed of 340 km/h (211 mph) while accelerating from 0 to 100 km/h in just 2.9 seconds. The GTS variant introduces a folding hardtop roof that can be operated at speeds up to 45 km/h and deploys in 14 seconds, featuring refined aerodynamics for reduced turbulence. This specific vehicle includes its service booklet, a list of factory options, a cancelled Swiss Carte Grise, Modena Cars’ invoices for services rendered, and a manufacturer’s Certificate of Conformity.
This was well-bought at CHF460,000, or around $580,000, as these had a sticker price starting around $400,000 that could range as high as $700,000 depending on options.
Sold for CHF460,000
This 1974 Ferrari Dino 246 GTS, chassis no. 07884, is a very desirable left-hand-drive model initially sold new in the United States. It showcases a unique Celeste Metallizzato exterior paired with Blu Connolly Vaumol leather upholstery, a combination believed to exist on only 29 vehicles. This particular car retains its original engine and comes with Ferrari build records, a Mattias Bartz Report, and the original owner’s documentation. It has been under single ownership for over twenty years and is now registered as a Swiss Veteran.
This E-series vehicle was completed in March 1974 according to U.S. specifications, imported by Luigi Chinetti, and sold through Swing Motors of Maryland. Its history is well-documented, having passed through several owners in the U.S. before being acquired by a Swiss Ferrari collector in 1989.
The latest owner bought it in 2002 and had an extensive restoration carried out in Sweden. The restoration included repainting the car back to its original Celeste Metallizzato color with help from Ferrari Classiche, refurbishing the interior with new blue Connolly leather, and rebuilding the numbers-matching V6 engine. After returning to Switzerland, the car received veteran registration in 2023.
This was well-sold for CHF448,500, or about $566,600 by Bonhams|Cars at their 2025 Bonmont Sale.
Sold for CHF448,500
The 1956 Bentley S1 Continental Sports Saloon, crafted by H J Mulliner, is a unique left-hand drive model with an automatic transmission, produced in a limited series of only 431 units. This car stands out for its exceptional elegance and comfort, providing smooth high-speed travel with a maximum speed of 120 mph and accelerating to 50 mph in just over 9 seconds.
Built for export and initially delivered new to Switzerland in January 1956, this S1 Continental was likely regarded as the most expensive vehicle of its time capable of accommodating four adults along with their luggage. It’s built on the S-Type chassis, featuring enhanced brakes, suspension, and an expanded 4.9L six-cylinder engine.
This car has had only one subsequent owner and is thought to have stayed in Switzerland throughout its history. Between 2023 and 2024, it underwent partial restoration that included a mechanical refurbishment of the front suspension, brakes, and steering systems, extensive maintenance work, and a full interior re-trim. The sale includes a detailed history file for the vehicle.
This performed well at the 2025 Bonmont Sale held by Bonhams|Cars, selling for CHF402,500 or a little over $500,000.
Sold for CHF402,500
The 1988 Porsche 930 Turbo Targa ‘Flat Nose’ is an exceptionally rare model, with only 19 examples built with the unique ‘flat nose’ (flachbau) design, identified by code M505. This particular car was brought into Switzerland from the USA in April 1990 by its second owner, at which point it had traveled around 3,000 miles. Following this, the odometer was changed to display kilometers.
Having passed through three owners since new, the current holder purchased the car in 2014. It has been carefully maintained and now shows 63,000 kilometers on the odometer, with its latest service completed in June 2025.
This Porsche includes its official Certificate of Origin from Porsche, verifying that the chassis and engine numbers match. Initially, it came with several desirable factory options: a limited-slip differential (M220), heated sport seats (M139, M340, M383, M387), and a sports leather steering wheel with an elevated hub (M018).
The original service book is fully stamped up to date, and the package also contains the original tool kit, three original keys, the Swiss Carte Grise, recent invoices for services, and the owner’s manual, which notably features the rare ‘flachbau’ supplement.
This was well-sold by Bonhams|Cars at their 2025 Bonmont Sale for CHF276,000, or about $350,000.
Sold for CHF276,000
Next for Bonhams|Cars
The next major auction for Bonhams|Cars is coming right up on July 11, 2025 at the Goodwood Festival of Speed.