1956 Ferrari 290 MM

Factory works entry built on the Tipo 520 chassis with a four-cylinder 860 Monza engine; campaigned across multiple major international events during 1956 and into early 1957.

Purchased via Luigi Chinetti in exchange for a 500 TRC; raced the car at the Swedish Grand Prix and Nassau Speed Weeks before selling back to Chinetti.

Reacquired from de Vroom; leased the car to Temple Buell for Nassau races, then displayed it at the Chicago Auto Show and retained it for roughly two years before selling to George Reed.

Brief ownership; his account of acquiring and owning the car is referenced in a published letter in Cavallino issue 128.

Car was stored at Chinetti's Connecticut facility for nearly two decades; a partial restoration by François Sicard was carried out in 1982, including a repaint in Chinetti's blue and white livery.

Illinois-based privateer and owner of RRR Motors who raced the car at several regional events in Wisconsin and Illinois, claiming multiple class victories.

Co-driven by motorsport photographer Louis Klemantaski; car ran under number 551 with a green nose stripe. Ferrari occupied the top five finishing positions overall.

Co-driven by Olivier Gendebien, running number 2; front bodywork was damaged in the incident.

Co-driven by Hans Herrmann.

Co-driven by Jacques Washer.

Co-driven by Eugenio Castellotti; the retirement prompted the car's return to Maranello for an engine upgrade.

Car ran as number 8 with a Tipo 136 V-12 engine; co-driven by Peter Collins and Eugenio Castellotti.

Co-driven by Wolfgang von Trips; car carried number 14 and was fitted with a 290 MM Tipo 130 single-cam V-12 and revised nose with polished aluminum brake ducts.

First competitive outing for de Vroom as the new owner; car was sent back to the factory for repairs afterward.

Car was leased to Temple Buell, who hired Moss; throttle pedal layout was reverted to standard at Moss's request. Moss led from the start despite having no prior experience in a 290 MM.

De Vroom drove in the preliminary events; ownership was then transferred via a complex deal to Temple Buell, who engaged Stirling Moss for the main races.

Driven by Dan Gurney, later a Le Mans winner, while the car was still under Chinetti's ownership.

First public appearance of the car in over two decades following its partial restoration; driven by an individual whose name is not fully given in the source text.

Following the final 1956 race, the car was returned to Maranello and fitted with a Tipo 136 290 S double-overhead-camshaft V-12 in preparation for the 1957 Buenos Aires race, replacing the original four-cylinder 860 Monza unit.

Evidence of the engine swap remained visible on the front lower chassis crossmember until the most recent Ferrari Classiche restoration.

Following accident damage at the Swedish Grand Prix, the car was returned to the factory and the nose was converted to the 250 Testa Rossa pontoon-fender style.

Work carried out before the car was shipped to Nassau for the Bahamas Speed Weeks.

At Stirling Moss's request, the throttle pedal was repositioned from a central layout back to the conventional arrangement prior to the Nassau Memorial Trophy race.

The Tipo 136 V-12 used at Buenos Aires was removed and upgraded to Tipo 140 specification for installation in a 315; the car was then equipped with a single-overhead-camshaft 290 MM Tipo 130 V-12 for Sebring, along with revised polished-aluminum brake-duct intakes.

A partial restoration was carried out after the car was removed from long-term storage, and it was repainted in blue and white to reflect Chinetti's team colours.

Work commissioned by Luigi Chinetti during his second period of ownership.