A tweet from the official British Airways account (below) first set the rumours in motion. The posted link takes you to the Aston Martin page of UK dealer group Dick Lovett, where people are asked to register their interest in "something very exciting" to be announced next Tuesday.
— British Airways (@British_Airways) November 22, 2019
Soon after, a source close to the firm contacted Autocar with images of a DBS appearing to be involved in a photoshoot. It features white paint (the same as the DBS graphic in the British Airways tweet) and prominent Union Jack exterior detailing.
While there's no reference to Concorde itself on the car, the second photo gives the game away, because the car is entering a hangar in which eagle-eyed aviation enthusiasts will spot the front landing gear of the iconic supersonic passenger jet. What's more, Dick Lovett is the official Aston Martin dealer of Bristol, and the Aerospace Bristol museum contains the last Concorde to ever fly.
The involvement of Dick Lovett suggests the car is a dealer-specific special available to order only through the group. No details of the model have been confirmed, but we can expect the full lowdown next week.