1969 Elva 3000 Cougar, with Ford V6 3000 engine built by Tony Ellis.
Yes! You seemed to change your original post after I had agreed it was the 3000 Cougar?!
Anyway, it's another point.
I guess those are VW rear-lights, but might have been fitted later as they look a bit out of place!
On the other hand they have the right slope so that the lights themselves are vertical, which may be why they were chosen...