PPC mag ran a few articles on it at the end of last year/start of this year, I'll reprint what I think was the final article on it here from back in February/March, I'm sure they won't mind as they are an open minded lot and were poised to fight this.
"Ever since rumours of government legislation to bring a halt to our hobby by enforcing a test similar to the SVA on any modified car started circulating, we've been overwhelmed with feedback from readers who've contacted their MPs to fight these proposals.
So far all we've been able to report is hearsay and as we mentioned last month, trying to get a definitive answer from the DVLA has been like trying to get blood from the proverbial stone - their spokespersons don't seem top be able to, well, speak.
However, thanks to the efforts of PPC reader Phil Bromson we now have news that all is not lost. Phils MP is Dr Steven Ladyman, who's the Minister for Transport and therefore responsible for the DVLA. Phil confronted Ladyman at his Friday night surgery and expressed our fears.
He was told there was nothing to worry about.
Ladyman said: "I assure you that the new procedures are not going to be any stricter than the old ones and that they will have absolutely no effect on people who want to modify their cars" There is nothing in writing yet, but Phil has promised to forward Ladymans written reply when he receives it. We will wait with cautious optimism and will keep you posted."
I know you wanted something substantiable
and I'm sorry, but it appears to have come from an MPs mouth so may not qualify :wink:
If you would like to email the Editor of PPC about any developements his address is Will@ppcmag.co.uk
Alternatively they have their own forum too: http://www.ppcmag.co.uk/forum
so you could ask there too (maybe there is a thread on it).