"did you create the new trunk space?"
No I think that would be a much bigger job because of the frame as per Michael's pictures. In any case I dont want to lose the option of re-fitting the spare wheel if at some point I need to use the luggage rack and a suitcase. The other
problem is that, with a louvred wheel cover, the trunk space would suffer from the wet unless it was completly sealed. My main motive was to reduce weight -- like Colin Chapman I hate excess weight in a car.