Thanks, very interesting! Here it was called "Dacia 1310". The 1300 was R12 first series and the 1310 was R12 second series. It's practically identical (outside and inside - the dashboard, the steering wheel) with R12 second series. R12 second series came in 1976, but it received four round headlights only in 1978. The production stopped in 1980. So, practically, this Dacia is a 1970s car, though probably dates from the beginning of the '80s (the 1310 came in 1979).

This is a 1978 R12:
http://capri-1600s-r12.over-blog.com/categorie-11521867.html . As you can see, there are only a few differences: the R12 has a chromed frame around the grill, which Dacia 1310 never had (though 1300 had); the extremities of the bumpers are, at Dacia, made of rubber (NOT plastic); Dacia's air vents still are like those of R12 first series/Dacia 1300 (only early 1310 had these air vents, they were pretty quickly replaced with R12 second series air vents); the dashboard is covered with "wood" (never here, this was only for external market). But these are trifles, the car is practically identical with R12 (compare with the photos from the link I posted above). So what you have here is a very rare Romanian R12 made for UK.

(Btw, in those pics you can see that a R12 can rust as good as a Dacia

).