thanks for your replies
That explains what the TC mod is, I quite like the idea of that and guess you could use the old excuse "sorry officer, the plate feel off because the magnet came loose so I'm waiting to stick a new one on" if you didn't want it on.
I've seen so many cars (especially jap) around my area that have the plate in the windscreen and wonder do the police actually bother to stop you and enquire as to why you've decided not to adhere to the DVLA's 'recommendations' of keeping the plate on the front outside of the car or whether their just lucky.
Oh well I think I'll go with the TC mod!
A sticker number plate is illegal i think (dont quote me though but pretty sure ive read somewhere it is on most cars). Id just stick it in the grill below using magnets as suggested above.
Yeah I asked one of my friends and he said he wasn't sure if they were legal but as far as his concerned so long as its reflective and the letters were legal then the police shouldn't be too concerned.