OPEL · OPEL DIPLOMAT · Cars
OPEL DIPLOMAT Ultra-rare
As of 2025 Q4, 1 OPEL DIPLOMAT remains registered in the UK — one of the rarest cars in Britain on today's roads. Numbers are at their highest recorded level since the model first appeared in our data in 2014 Q4. Numbers have held broadly steady over recent years rather than falling away — often the mark of a model that owners deliberately preserve. In all, the OPEL DIPLOMAT is rarer than 93% of the 2,408 UK car models we track, putting it firmly in 2025's endangered class.
Survivors over time
How rare is it?
Genuinely rare — only 1 left on UK roads.
Rarer than 93% of the 2,408 UK car models we track.
Trend
About the DIPLOMAT
The Opel Diplomat is a luxury car manufactured by Opel from 1964 to 1977. Opel's top-ranging models were traditionally the Admiral and Kapitän, introduced in 1938 and 1937 respectively. In 1964 these models were joined, in the so-called "KAD" (Kapitän, Admiral, Diplomat) range, by the new Opel Diplomat. In most respects the three were badge-engineered versions of the same vehicle.
OPEL DIPLOMAT — questions & answers
How many OPEL DIPLOMAT are left in the UK?
As of 2025 Q4, 1 OPEL DIPLOMAT were still registered in the UK — 1 licensed and on the road, plus 0 declared SORN (off-road). The figures come from official DVLA vehicle licensing data.
Is the OPEL DIPLOMAT rare?
The OPEL DIPLOMAT is genuinely rare, with only 1 left, making it rarer than 93% of the 2,408 UK car models we track.
Is the OPEL DIPLOMAT increasing or decreasing?
Over the last year the number of OPEL DIPLOMAT on UK roads held steady.
What fuel do most OPEL DIPLOMAT use?
Most OPEL DIPLOMAT run on petrol — about 100% of those still registered.
When did the OPEL DIPLOMAT peak?
The OPEL DIPLOMAT peaked at 1 registered in 2014 Q4, and was first recorded in the data in 2014 Q4.