hi michael. i have one on my s-type,i bought my wife one for her s-type( birthday) prestige jaguars, in paisley, told her that the local police have been giving out £60 on the spot fines--swine.i called jaguar garage in inverness, their stated position is that if it passes an m.o.t. with( sprung)leaper fitted, then it is legal. this is ongoing, as wife has e-mailed jaguar directfor clarification, also asking them if they have ever challenged e.u. legislation, on their customers behalf, and if so--what result. will post update whn i know more.