Few performance saloons of the period carry the same presence as the 300 SEL 6.3.

Introduced in March 1968, it combined the 6.3-litre M100 V8 and automatic transmission from the mighty Mercedes-Benz 600 with the more discreet W109 saloon body, creating one of the fastest production four-door cars of its era.

Mercedes-Benz recorded output at 250hp, and period performance figures helped cement the model’s reputation as a true autobahn express.

This, right-hand drive example is described as one of only 712 produced in that configuration worldwide and is believed to be among a very small number currently registered for road use in the UK.

More importantly, it has clearly benefited from long-term care, with just four owners from new and an impressively detailed history file supporting its provenance and maintenance.

Accompanying the car is a substantial file containing invoices, correspondence and letters of provenance, all helping to build a clear picture of a cherished and well docu...