there were 25 made of these infact 1900cc rattlesnake kit made by fibresports
and you are right its a genuine car i have pics of this very car as im sure it is no 1 build lol
tbh they are pants mate and not considered a true rs imo similar to the hendy ford yellow mondeos remember them

think the one you pictured still even has its mahoosive yuppie 80,s phone in it lol maybe the kit was influenced by those 80,s power suits lol you know the ones with massive shoulder pads in em hahahah
and they were called rattlesnakes as thy couldnt call them an rs lol

found pics