Mercedes-Benz SSK (1928)Sicnag, CC BY 2.0, via Wikimedia Commons

Mercedes-Benz SSK Supercharged Sport Kurz

1928 — Germany

Pre-War (before 1946)Sports CarRoadsterGermanConvertibleTurbo/SuperchargedRacing HeritageUnder 100 ProducedInvestment GradeMille Miglia EligibleMillion Dollar ClubLimited ProductionDesign IconsOpen-Top DrivingPre-War Masterpieces
Engine7,065 cc Inline-6 SOHC Supercharged
Power300 hp
Transmission4-speed manual
DrivetrainRWD
Body StyleRoadster
Weight3,748 lbs
Top Speed119 mph
Production33 units
BrakesDrum (mechanical, vacuum-assisted) / Drum (mechanical, vacuum-assisted)
SuspensionBeam axle, semi-elliptic leaf springs / Live axle, semi-elliptic leaf springs

Mercedes-Benz SSK Supercharged Sport Kurz

The Mercedes-Benz SSK — Super Sport Kurz (Short) — represents the pinnacle of the supercharged sports car era and stands as one of the most important and valuable automobiles ever created. Designed by Ferdinand Porsche during his tenure at Daimler-Benz, the SSK was the short-wheelbase, high-performance derivative of the S and SS models, built specifically for racing and high-speed road use.

The SSK's engine was an engineering monument of its era. The 7.1-liter inline-six used a single overhead camshaft and a Roots-type supercharger that was engaged by fully depressing the throttle pedal. Without the supercharger, the engine produced approximately 170 horsepower — already formidable for the period. But when the driver pushed the throttle to the floor and the supercharger engaged, output jumped to an extraordinary 300 horsepower, accompanied by a banshee wail from the exhaust that could be heard for miles. This on-demand supercharging system was designed for short bursts of maximum power rather than continuous use, providing devastating acceleration when needed while preserving the supercharger and drivetrain during normal driving.

The 'Kurz' designation referred to the SSK's shorter wheelbase compared to the SS — reduced from 3,400mm to 2,950mm — which improved agility at the cost of some high-speed stability. This modification, combined with reduced bodywork and optional lightweight components, made the SSK a formidable competition machine.

In the hands of Rudolf Caracciola, the SSK was virtually unbeatable. Caracciola won the 1929 Tourist Trophy in Northern Ireland, the 1930 Irish Grand Prix, and the 1931 Mille Miglia — the first non-Italian to win the famous Italian road race. The Count Trossi SSK, with its striking black bodywork by Touring, competed successfully throughout Europe and became one of the most famous racing cars of the era.

The SSK was extraordinarily expensive when new, affordable only to the wealthiest buyers and factory-backed racing teams. Each car was essentially hand-built, with variations in bodywork, engine specification, and equipment that made every example unique. The massive white-painted exhaust pipes emerging from the bonnet became a visual signature, earning the supercharged Mercedes sports cars the nickname 'White Elephants.'

Only approximately 33 SSK chassis were produced between 1928 and 1932, and the number of survivors is believed to be fewer than half that figure. The rarity, historical significance, racing provenance, and sheer presence of the SSK make it one of the most valuable automobiles in existence. When examples appear at auction — which happens only rarely — they command prices that reflect their status as among the most important cars ever built.

The SSK's legacy extends beyond its own era. It established Mercedes-Benz's reputation as a builder of the world's most powerful and exclusive sports cars, a tradition that continues today with AMG performance models that carry forward the spirit — if not the supercharged fury — of Ferdinand Porsche's masterwork.

$5,000,000 – $15,000,000

Authentic Mercedes-Benz SSKs are among the rarest and most valuable cars in the world. Any potential purchase requires extensive provenance research through Mercedes-Benz Classic archives, independent historians, and existing registry records. The market for these cars operates at the highest levels of collector car commerce, with transactions typically occurring privately between established collectors. Several replicas and tribute cars exist — verification of original chassis, engine, and body is essential.

Approximately 33 SSK chassis were produced between 1928 and 1932. The SSK was designed by Ferdinand Porsche before he left Daimler-Benz to establish his own company. A further lightweight SSKL (Super Sport Kurz Leicht) variant with drilled chassis rails was produced in very limited numbers. Each car was essentially bespoke, with different bodywork configurations and engine specifications.