1928 Mercedes-Benz 630K Sports Tourer
- Engine
- 6.3L SOHC inline-six with Roots supercharger, 140 PS (approx. 138 bhp) blown

The 1928 Mercedes-Benz 630K Sports Tourer, chassis 35419, is one of only 150 examples built between 1926 and 1929, bodied by the Sindelfingen works with a distinctive four-seater sports-tourer body featuring competition-specification bonnet louvres. Originally deployed as a factory entry, the car earned Gold Medals at the 1928 and 1929 Internationale Alpenfahrt under first private owner Dr Robert Krailsheimer. After surviving a crash in Finland in the 1930s and decades of storage, the car was rediscovered in 1989 and fully restored in Germany during the 1990s, subsequently participating in the 2007 Mille Miglia Storica.
Ownership
- 2020-09-06Auction saleEstimate €600,000 – €900,000
- 1928-04-12 → 1929-07-29Factory deliveryDaimler-Benz factoryfull documentation
Retained by the manufacturer for display and competition purposes; documented in the Mercedes-Benz Order Book and Archives.
- 1929-07-29 →Private saleDr Robert Krailsheimerfull documentation
Stuttgart physician and accomplished amateur driver who had also used the car as a factory entry prior to formal acquisition; fled Germany in 1933 and drove the vehicle to Finland, where it was damaged in a crash injuring his wife Britta.
- → 1989Acquisition unknownAnja Pakulapartial documentation
A relative of hers, a museum owner, had found the unrepaired car in a forest shed and acquired it with display intentions that were never realised; ownership passed to Pakula at some point thereafter.
- 1989 → 2005Private saleHans Werner Schaefferpartial documentation
Collector from Bad Oeynhausen who negotiated the purchase from Pakula and brought the car back to Germany; oversaw a full mechanical and body restoration during the 1990s using factory photographs for reference.
- 2005 → 2005Acquisition unknownGerman classic car dealerpartial documentation
Intermediary through whom the car was sold following Schaeffer's death.
- 2005 →Private saleCurrent vendorpartial documentation
Commissioned a thorough engine overhaul by specialist Peterheinz Kern of MTK before a planned rally entry; subsequently had the engine repaired after a piston failure during competition.
Competition
- 1928-06-01ADAC Reich und Alpenfahrt 1928Driver: Dr Robert KrailsheimerGold Medal, penalty free
Entered as factory entry number 76; car was still factory-owned at this point, with Krailsheimer driving on the factory's behalf.
- 1928-07-16Concours d'elegance, Düsseldorf exhibition
Display appearance at a Düsseldorf exhibition before the Alpine Rally.
- 1928-08-011928 Internationale AlpenfahrtDriver: Dr Robert Krailsheimer2nd overall, Gold Medal, penalty free
First running of the International Alpine Rally, held 12–18 August 1928; Krailsheimer finished behind W R Wittich's 630K, entry number 47.
- 1928-09-01Concours, Bad Neuenahr
Participation recorded in the factory Order Book.
- 1929-08-011929 Internationale AlpenfahrtDriver: Dr Robert KrailsheimerGold Medal, penalty free
Second edition of the event, 7–11 August 1929, covering 2,500 km in five days; Krailsheimer finished behind the two works SSKs of Wilhelm Merck and Georg Kimpel.
- 2006Safari Challenge Rally 2006DNF — piston failure
Current vendor's entry; a new piston installed during the pre-event overhaul failed during the rally, causing retirement.
- 2007Mille Miglia Storica 2007
Historic regularity event participation following engine repair after the 2006 rally retirement.
Maintenance & restoration
- 2006Engine rebuildMTK (Peterheinz Kern)
Thorough engine overhaul carried out ahead of a planned rally entry. Inspection confirmed the engine was original and had covered limited mileage with minimal wear; all internal components bore matching numbers. Only the pistons and radiator were replaced with new parts.
During the subsequent rally, one of the replacement pistons failed, causing retirement; the engine was repaired afterwards.
- 2006Repair
Engine repaired following piston failure that caused retirement from the 2006 Safari Challenge Rally.
- —Restoration
Following rediscovery in Finland, the car was brought back to Germany and fully rebuilt to original mechanical specification by the new owner with assistance from multiple specialists. Surviving original components — chassis, engine, gearbox, axles, differential, fuel tank, bonnet, doors, and seats — were retained, while the Sindelfingen body was reconstructed using period factory photographs as reference.
Work was carried out over a number of years and completed during the 1990s. Many original body parts survived but not all; reconstruction relied on factory archive photographs numbered 7898 and 7899.
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