My mates had to go thru all this bull just recently. He was of the opinion that it would lead to tighter regulation fo the 'aftermarket soup-up' parts. Given that a lot of these components void the ADR's, they could potentionally go back to the mechanic that fitted the part and pull his license, which you now legally require to perform work on vehicles. It also regulates the industry a bit more, I know of tyre fitters running mechanical workshops, that's not to say they don't know about mechanics, but it would certainly give the customer piece of mind, knowing that their car is being worked on someone who's done the poper ticket.
yeah but most "tuning shops" have a disclamer on their invoice that goes something like this:
"the modifiications for this vehicle are solely for use offroad/racetrack conditions and are not suitavle for public road(s) use"
see any of your reciepts from C-red/Cypher/hyperdrive, this is because many people ask them to modify them to an extent that contraviens ADR etc hence the aforementioned disclaimer. which if memory serves me well has been on Cypher's invoices for at least 10 years.