2017 Ferrari F12tdf - $1.9m high bid

The F12tdf was about 243 pounds lighter than the contemporary F12berlinetta and featured revised bodywork and aerodynamics including a wider track. The 2017 Ferrari F12tdf had a starting MSRP of $450k to $500k+ when new, though highly optioned models often exceeded $600k+. One of 799 examples built between 2015 and 2017; one of 299 US-delivery examples. Giallo Triplo Strato. Alcantara Nero interior. Carbo Fiber racing seats with Giallo stripe. Giallo seat belts. Front lift package. Parking cameras. Odometer reads 1,300 miles.

The 2017 Ferrari F12tdf (Tour de France) is a limited-production, track-focused evolution of the F12berlinetta. It 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. Hagerty suggests a concours condition 2017 Ferrari F12tdf is trending around $1.3m. This example appears at Mecum.

1931 Duesenberg Model J Tourster by Derham - $1.2m bigh bid

The 1931 Duesenberg Model J Tourster by Derham is an extremely rare and valuable classic. Only eight original Derham Toursters built on a Duesenberg Model J chassis were built. Known for its sophisticated design by Gordon Buehrig and luxurious, open-air coachwork by Derham, it represents the pinnacle of American automotive luxury and performance from the era. $550,000 comprehensive restoration. Tourster body by coachbuilder Derham. 420 CI Inline 8-cylinder engine. 3-speed manual transmission. Black exterior. Black soft top. Beige interior. Bench seat. Jaeger Watch Co. chronograph. Duesenbird mascot.

The 420-cubic-inch (6.9L) straight-eight, dual overhead camshafts (DOHC) engine produced 265 hp, capable of propelling the car to speeds over 116 mph. The car was the epitome of advanced engineering, hydraulic brakes were novel for that time. The car appeared at Mecum.

1969 Chevrolet Yenko Nova - $852,500

29,454 miles. 1 of only 38 Yenko Novas produced for 1969. Sold new at Yenko Chevrolet in Canonsburg, Pennsylvania. Comprehensive restoration. L72 427/450 HP V-8 engine. M21 4-speed manual transmission. 12-bolt rear end. F41 heavy-duty suspension. Power brakes with front discs. Heavy-duty cooling system with upgraded radiator.

Car was powered by a 427/450 HP L72 V-8, factory-installed under Chevrolet’s Central Office Production Order program for dealer Don Yenko. It was the most dangerous car Don Yenko ever built. Brutally overpowered and underweight, the car was dangerous in the hands of most.

Yenko commissioned 99 Chevelles equipped with the monster 450hp engine. He also opted to produce a short-run version of the Nova with the same mill. 38 compacts rolled out, including this Fathom Green coupe. The car changed hands at Mecum.

The most expensive American cars sold at auction

1935 Duesenberg SSJ. $22m. Duesenbergs were the most extravagant vehicles of their era, serving as status symbols for the wealthy and famous. This roadster with coachwork by LaGrande is one of only two SSJ models built on the short wheelbase with the twin-carb supercharged engine. It was originally owned by actor Gary Cooper.

1962 Shelby Cobra. $13.7m. The first Shelby Cobra ever built. This prototype features unique characteristics not shared in later production Cobras.

1966 Ford GT40 Mk II. $13.2m. This GT40 made a second-place finish at the 1966 12 Hours of Sebring behind the GT40 X-1 roadster piloted by Ken Miles and Lloyd Ruby. Just eight Mk II GT40s were built.

1968 Ford GT40 Gulf/Mirage Lightweight. $11m. Jacky Ickx and Dr. Dick Thompson drove this car in its race debut at Spa in 1967, where it won. It also served as a camera car in Steve McQueen’s Le Mans.

1931 Duesenberg Model J Long-Wheelbase Coupe. $10.3m. This coupe, with Coachwork by Walter M. Murphy Company, was restored to exacting standards and won its class at the Pebble Beach Concours d’Elegance.

1966 Ford GT40 Mk II. $9.7m. This GT40 Mk II was campaigned by legends including Ken Miles, Richie Ginther, A.J. Foyt, Mark Donohue, and Peter Revson.

1969 Ford GT40 Lightweight. $7.8m. Equipped with its original body, chassis, engine, and transaxle, this small-block-powered GT40 lightweight was rebuilt and restored to its 1969 specification.

1957 Chevrolet Corvette SS Project XP-64 $7.7m. This car was the personal project of Zora Arkus-Duntov, the father of the Corvette. It shared little but the grille with its factory Corvette brethren.

1964 Shelby Cobra Daytona. $7.6m. Helping Shelby win the GT 3.0+ class at the 1965 World Sportscar Championship, just six copies of the Cobra Daytona were built.