amanico[JLC Moderator]
402318
A special Volvo P1800. The P1800 Aston Martin.
This car will be auctioned at the end of this year.
The normal P1800 comes with a Volvo engine, 1, 8 Liter or 2 Liter 4 Cylinders.
This one houses an... Aston Martin 4 cylinders 2, 5 liter engine ( 2 cylinders were removed ) developing 151 HP, versus 120 HP for the " in house " Volvo 2 liter engine.
The car is from 1963, assembled by Jensen.
It was never sold.

The " magic " engine:
So, to make it short, it is an early P1800, assembled by Jensen who assembled the P 1800 from 1960 to 1963, with an Aston Martin engine which lost 2 cylinders for some cost reasons...
Credit: Classic Car.
Best,
Nicolas