Bristol 603 Seried 6 in the works...
 

From an unimpeachable source close to Bristol Cars Ltd. comes a report that the specifications decisions for the first order for a 603 Series 6 conversion to have the same mechanicals as the Blenheim 3 are nearing completion, “showing the model has risen in popularity to the point where an owner is investing nearly what a new Blenheim 3 costs, illustrating how highly this ‘70s style is now regarded."