I think it is from 1977 / 1978 as SWK is actually on the road with its new CVT test-bed gearbox.
Note the spare wheel on the boot lid ( the boot was full of electronics ).
I suspect the car has "failed to proceed" as its sitting at the entrance to a farm track
And get an eye-full of those '70's hairstyles !

Is this you if you are ex-B.L. ?
Tony.