I read in the Paper that an Enzo is the only car exempt from requiring a front Numberplate because there is nowhere to put it.
Another story I heard is that Ducati 748/916 riders were taking theirs off and putting a strip of Yellow with black writing Dyno Label Print Machine Label on the rear plastic behind the seat.
When they got a pull from, as somebody else put it, 'the 5-0'! for no number plate they actually had a number plate just not to the correct specification!
Cue £30 fine and lots saved in Camera fines.
Not condoning in any way as Speed Cameras in 30 and 40 zones are there for a reason but amusing all the same.