After a quick Google around just now, I landed on this Gov doc from earlier in the year. Bypassing any media guesswork etc, it does seem to hint at the general mood of the minister concerned over this.
Note that early on, the definition of substantially modified has been highlighted and kept deliberately vague and undefined. I take this to mean that the U.K. government (with a pretty good history of supporting classic / modified cars), has given themselves (and us) wiggle room whilst being able to report back to the EU that they have implemented incoming legislation.
As far as I'm aware, the original EU proposals came about because some of the truly appalling vehicles on the road in the poorer EU states. The sort of thing that might be half tractor, half horse cart. I don't think the intention is to disadvantage classic owners in weathly countries with histories of pretty decent safety standards and sensible owners.
The eight point system, and it's associated language has already been with us for years.
Keith, can you link to the docs that spell out modifications that would fall foul of the proposed / perceived incoming regs? I think you mentioned wheel-arches?
Also during my Googlings I came across a line somewhere on a Gov doc (lost where it is now), that stated quite clearly that a vehicle would fail to be awarded an age related plate (as opposed to retaining an original historic one) where it had 'any new parts'. It gave no definition of what this meant at all: I'm sure they meant chassis / monocoque or whatever, but actually could have been taken as an oil filter or spark plug. This wasn't anything to do with the upcoming proposals from what I could see, just has been there for some time, presumably quietly interpreted sensibly by whomever.
Anyway, I suspect that given the historically generally supportive stance of UK government of 'interesting vehicles', the public support for the same, and (hopefully) a basic will not to want to introduce another swathe of uncertainty across a valuable sector will mean in practise much of this will come out in the wash one way or another.
Personally I have a double interest in this,
a) because I've got a Triumph TR6 that I want to rebody in the style of a 1960's Italian coupe, but retaining the original inner tub.
b) I've recently aquired the bucks / jigs and rights to build aluminium bodys for Austin Sevens in the style of a 1 1/2 seater Brooklands racer type thing.
Both hit the 8-point system minimum score with no problem. There could be a slight discussion on the chassis of the A7's, as a rear body support is left off (previously rivetted into place) . I think it should be fine though, as the main chassis remains intact. The greater question for both is the new body (A7) and new outer shell (TR6). This is a question that has been rolling around the coachbuilding industry for the last few years. My chum Rod Yates alone has built over 220 Ulster rep. bodies. He is one of many in that line of work. I really can't invisage a situation where the government is going to shut Rod and his collegues down over this. What would be the motivation? Most of the wealthier EU countries have vibrant and popular classic, vintage and modifying scenes / industries. The level of disruption and upset would be tremendous, using political capital for what purpose? It simply doesn't add up. What we (as Porsche folk) are taking to be substantial modifications are I'd guess actually fine details by most people's standards. Front slam panels, rear arches and so on? Surely they're thinking more drastic than that?
Here's that doc, the tone, to me, sounds pretty mild on the whole. I know this was earlier in the process, but I would like to see some hard government docs that support the need for the (understandable) worry seen on this thread. Failing that, I suspect that actually many people will enjoy their new MOT exemptions (wrong decision in my books, but there you go) and free RFL's, and the rest will settle down after the initial inevitable rush of confusion, panic, administrative misjudgements, headlines and so on

.
https://www.gov.uk/government/uploads/s ... hiness.pdf
BTW, for all of my above comments, I can't square away to Power to Weight thing

.
DDK Member1243 07741 273865. Home of the RY Austin 7 Trophy's and Austin Single Seat Racers