actually guys,
i've done the same thing to my 1.6.
Tho, i've not got the carbon fibre bonnet, or the nasty aftermarket alloys, i went for a set of genuine 18inch Monzas.
anyway, i doubt it actually cost him that much to do it.
my car cost just under £1k to do everything in total, so i reckon the guy is bullsh***** abt the cost to try and jack up the price.