Ferrari 550 GT1 Prodrive - $4.29m

The headliner at an RM Sotheby’s auction was the sale of a 2001 Ferrari 550 GT1 Prodrive racecar, which was one of only 12 built and won several races in the early 2000s. It was estimated between $3.9m and $4.9m, which would make it the most expensive car ever sold at an online-only auction.

Ferrari 550 GT1 Prodrive, chassis no. 108418/CRD02, represents a true icon of the international GT racing scene in the early 2000s. The Ferrari was campaigned by BMS Scuderia Italia and recorded 14 victories in its division, as well as racing its way to class victory at the 24 Hours of Spa in 2003. It was the overall winner of the 2004 FAI GT Championship and 2004 24 Hours of Spa.

2004 Gemballa Mirage GT

The 2004 Gemballa Mirage GT is an exclusive supercar based on the Porsche Carrera GT. In the mid-2000s, an owner supplied a donor Porsche Carrera GT ($330k to $440k) and then paid Gemballa $325k to $426k for the extensive 'Mirage GT' conversion.

Chassis no. 24 of 25 by Gemballa. 100 miles since conversion's completion. Naturally aspirated 5.7L/670 HP V-10 engine. Gemballa engine enhancement package, with revised ECU tuning, custom ram-air intake, and free-flowing stainless steel exhaust system. 6-speed manual transmission with custom upgraded Gemballa sport clutch. Upgraded racing-inspired suspension components. Internally ventilated ceramic composite brake discs. . Internally ventilated ceramic composite brake discs. KW front and rear axle lifting system. Finished in Lime Rock Gray Metallic and Black with Sun Yellow highlights.

The initial $700k was money well invested. This example will likely exceed $2.5m and might top $3m. Here.

1969 Ford Mustang Boss 429

The Boss 429, the 'Boss 9', is one of the rarest and most valued muscle cars from the era.

The origin of the Boss 429 came about as a result of Ford’s desire to compete in the top NASCAR series. Ford was seeking to develop a "Hemi" engine that could compete with the famed 426 Hemis from the Mopar camp - the 426 Hemi Charger Daytona and the Plymouth Superbirds. The Boss 429 ci OHV V-8 engine was rated at 375 HP while actual output was well over 500 HP.

In 1969 there were 859 Boss 429s made by Ford, two of which were Cougars for the Lincoln/Mercury Race Division. There were five different colors available and the only color for the interior was black.

#1 Concours examples trended around $455k in 2025 according to Hagerty. Condition #1 vehicles are the best in the world.

In 2015 a 1969 Ford Mustang Boss 429 with a nearly unbelievable 120 miles on the clock sold for $247,000 That number would be much, much higher today.

KK No. 1857 brought $231k at Mecum's in 2019. Prices have exploded in the past 5 years.

2016 Ferrari F12tdf - $2.5m high bid

The Ferrari F12tdf (Tour de France) is a limited-production, track-focused evolution of the F12berlinetta. Historic GTO Livery. 1 of 799 produced. Odometer reads 1,250 miles. 6.3L/769 HP V-12 engine. 7-speed dual clutch automatic transmission. Carbon fiber engine covers and filter box. Carbon fiber headlight buckets and fog lamps. Canna Di Fucile over Nero interior. The 2016 Ferrari F12tdf had a starting MSRP of $490k+ when new, though highly optioned models often exceeded $600k+. One of 799 examples built between 2015 and 2017; one of 299 US-delivery examples.

The car boasts a potent 770hp 6.3L V12, rear-wheel steering, and blistering performance, including 0-62mph in 2.9s and a sub-1:22 lap at Fiorano. Top speed is 211 mph. It is a highly collectible modern classic and prices have done nothing but rise. This example failed to change hands on a $2.5m high bid in May 2026 at Mecum.

2011 Ferrari 599 GTO

241 miles. Special-order Ferrari Blu Nart 523, out-of-range paint color $8,712 option. Bianco Avus 100 Racing Livery, $8,712 option. 6.0L/661 HP V-12 engine. F1 Superfast 6-speed automatic transmission. Aluminum space frame design. Magnetorheological suspension. F1 traction control. Scuderia shields. Brembo carbon ceramic disc brakes with aluminum calipers. Telemetry kit. Factory leather-wrapped roll bar. Bose HiFi stereo.

The 2011 Ferrari 599 GTO was established as a modern classic right out of the gate. Current market prices range between $1,650,000 USD and $2,250,000 USD. 599 units were produced globally, and values appreciated instantly from their original $400,000+ base MSRP. This as new example will test the upper end at Mecum.

1969 Chevrolet Corvette L88 Convertible - $759k

6,465 original miles. Documented with the original window sticker. Bloomington Gold Hall of Fame inductee. 427/430 HP L88 engine. M22 4-speed and 3.70 Positraction rear end. Original exhaust system. J50 and J56 brake packages. F41 suspension, K66 transistorized ignition. Radio delete, A01 tinted glass. Can-Am White with Black interior. Front fender louver trim. White soft top and Black vinyl hardtop. 1 of 116 L88 Corvettes produced in 1969. Four owners since new.

As rare and treasured as any Corvette L88 can be, this low mileage 1969 stands alone. The L88 centered on a 427 CI V-8 engine packing forged steel crank and rods, forged aluminum pistons, 12.8:1 compression, free-breathing aluminum heads, a radical high-lift cam, a single Holley 850 CFM four-barrel carburetor on a dual-plane aluminum intake manifold and transistorized ignition.

To handle the engine’s actual output of 560-plus horsepower, L88 specifications included a Muncie M22 close-ratio 4-speed, J56 special heavy-duty brakes and G81 Positraction rear end. 216 L88 Corvettes were built from 1967 through 1969, and they are now among the most valuable Corvettes ever made. This spectacular example failed to change hands on a high bid of $675k at Mecum in 2020. It did change hands for $759k in 2025. Here.

1937 Bugatti Type 57 Atalante

The Atalante was a two-door coupe body style similar to and built after the Atlantic, both built on the 57S chassis.

Only 17 Atalante cars were made, four of which reside in the Cité de l’Automobile Museum in Mulhouse, France. One of the most aerodynamic and beautiful of Bugatti’s Type 57 variants, the car was capable of 125 mph with its 3.25-liter inline-8 that produced an unheard of 175 hp. The Type 57S is equipped with a Marshall K200 supercharger, 4-speed manual gearbox, and 4-wheel mechanical drum brakes.

The engine on chassis 57502 was fitted with a supercharger by its second owner. This gave it a mind-boggling 220 hp.

The Type 57S is one of the most sought-after of all Bugattis.

This 1937 Type 57S Atalante sold for £7,855,000. ($10,179,000)

These cars don't appear for sale often. When they do the price is over $10m. In 2009 a rare, unrestored 1937 Bugatti Type 57S Atalante Coupe was found decaying in the garage of a British doctor. He died in 2007, and reportedly had kept the vehicle parked in his garage since the early 1960s and hadn’t driven it in five decades. A month later the car sold at a Paris auction for some $4.4 million.