The Rubber Spoiler came off of a Acclaim the Peugeot 405 is also a straight bolt on and you can chose to have the either one with a third brake light or without.
[8 whole cylinders worth of punch to ram the world through the windshield and out the rear view mirror. Car & Driver]
1981 Grinnall TR7 v8
1981 Black FHC
1979 & 1980 Black Premium FHC(laid to rest) Sorry
John